Crispin Guest is a disgraced knight, stripped of his rank and his honor - but left with his life - for plotting against Richard II. Having lost his bethrothed, his friends, his patrons and his position in society. With no trade to support him and no family willing to acknowledge him, Crispin has turned to the one thing he still has - his wits - to scrape a living together on the mean streets of London. In 1383, Guest is called to the compound of a merchant - a reclusive mercer who suspects that his wife is being unfaithful and wants Guest to look into the matter. Not wishing to sully himself in such disgraceful, dishonorable business but in dire need of money, Guest agrees and discovers that the wife is indeed up to something, presumably nothing good. But when he comes to inform his client, he is found dead - murdered in a sealed room, locked from the inside. Now Guest has come to the unwanted attention of the Lord Sheriff of London and most recent client was murdered while he was working for him. And everything seems to turn on a religious relic - a veil reported to have wiped the brow of Christ - that is now missing.

Convicted of treason, Crispin Guest was stripped of his title, his land, his money and his friends. Now with only his considerable wits to sustain him, Guest works the mean streets of 14th century London, building a small reputation for his skill. In 1383, a simple-minded tavern girl comes to his door—a body was found where she works and she’s the only person who could have killed him. Except for the fact that the man was killed in place by a precisely aimed crossbow bolt. Making matters worse, the murdered man was one of three couriers from the French king, transporting a relic intended to smooth the troubled relations between France and England. Events quickly spin out of control and Guest now finds himself the prime suspect in the murder, one with terrible diplomatic implications. As the drumbeat of war between the two countries grow, Guest must unravel the con spiracy behind the murder to save not only his country, but himself as well.

In fourteenth century London, Crispin Guest is a disgraced knight convicted of treason and stripped of his land, title and his honor. He has become known as the “Tracker”—a man who can find anything, can solve any puzzle and, with the help of his apprentice, Jack Tucker, an orphaned street urchin with a thief ’s touch—will do so for a price. But this time, even Crispin is wary of taking on his most recent client. Jacob of Provencal is a Jewish physician at the King’s court, even though all Jews were expelled from England nearly a century before. Jacob wants Crispin to find stolen parchments that might be behind the recent, ongoing, gruesome murders of young boys, parchments that someone might have used to bring forth a demon which now stalks the streets and alleys of London.

Disgraced knight Crispin Guest gets himself into some serious trouble in London and as a result is forced to accept an assignment far out of town. The Archbishop of Canterbury has specifically requested Guest to investigate a threat against the bones of saint and martyr Thomas a Beckett, which are on display in the cathedral in Canterbury. The archbishop has received letters threatening the safety of the artifacts, and he wants Guest to protect them and uncover whoever is after them. When he arrives at Canterbury, Guest is accosted by an old acquaintance from court – one Geoffrey Chaucer – and is surrounded by a group in town on a pilgrimage. Trapped amongst the pilgrims (who were, quite possibly, the model for Chaucer’s famous story cycle), looking for a murderer, a hidden heretic and a solution to the riddle that will allow him to go back home, Crispin Guest finds his considerable wit and intellect taxed to its very limit.

Crispin Guest, returning home after a late night, sees a body hurtling from the uppermost reaches of the London Bridge. Guest's attempted rescue fails, however, and the man—an armourer with a shop on the bridge—is dead. While whispers in the street claim that it was a suicide, Guest—known in certain London circles as The Tracker for his skill in solving puzzles—is unconvinced. What Guest uncovers is that the armourer had promised Sir Thomas Saunfayl, a friend from Guest's former life, that he would provide him something that would make him unbeatable in battle, something for which he'd paid a small fortune. Sir Thomas believes that the item was in fact the Spear of Longinus - the spear that pierced the side of Christ on the cross—which is believed to make those who possess it invincible. Complicating matters is another old friend, Geoffrey Chaucer, who suddenly comes to London and is anxious to help Guest find the missing spear, about which he seems to know a bit too much. With various forces anxious to find the spear, the life of Sir Thomas in danger and perhaps the very safety of England hangs in the balance, Guest and his apprentice Jack Tucker must navigate some very perilous waters if they are to survive.

“Creative and enthralling . . . If you enjoy authentic Medieval history combined with modern suspense, this one's for you.” —John Lescroart Once a Knight of the Realm, Crispin Guest was stripped of his title and his lands and must now earn his meager living through his wits. With the help of his young apprentice, reformed thief Jack Tucker, Guest is known to certain populations as The Tracker, the man who can find anything—for a price. It is for that reason that Guest is sought out by Nicholas Flamel, an absent-minded alchemist. Both Flamel’s wife and his apprentice are missing, and he wants Guest to find them and bring them home. Before he can even begin looking, Guest discovers that Flamel’s house has been ransacked. Then Flamel’s assistant turns up—dead, hanging from the rafters with a note pinned to his chest by a dagger. It is a ransom note that promises the safe return of his wife in exchange for the Philosopher’s Stone, which is reputed to turn lead into gold and create the elixir of life. And the kidnappers aren’t the only ones after it. From the highest nobility to Flamel’s fellow alchemists, everyone is seeking the stone for themselves. Guest must rescue the missing wife and find the stone before it falls into unworthy hands, in Jeri Westerson's Shadow of the Alchemist.

When a corpse turns up at his favorite tavern, Crispin begins an inquiry, but the dead man turns out to be a Knight Templar, an order thought to be extinct for 75 years, charged with protecting a certain religious relic which is now missing. Before he can investigate, Crispin is abducted by shadowy men who are said to be minions of the French anti-pope. Further complicating matters are two women: one from court with an enticing proposition, and another from Crispin’s past, dredging up long-forgotten emotions he would rather have left behind. And as if all that weren’t enough, a cunning young cutpurse by the name of Jack Tucker has insinuated himself into Crispin’s already difficult life. The deeper Crispin probes into the murder, the more it looks like the handiwork of an old friend turned adversary. With enemies from all sides, Crispin has his hands full in more than murder.

London, 1388. When the mythical Stone of Destiny is stolen from the throne of England in Westminster Abbey, Crispin Guest, the Tracker, witnesses the dramatic disappearance for himself. After the disastrous civil strife of the last two years, he knows well that King Richard II now fears that the populace will take it as a sign to side with Richard’s rebellious barons. The king can little afford for his authority to be any more undermined, especially after the English army suffers a crushing defeat against a Scottish uprising. Desperate, Richard turns to Crispin to find the missing Stone. And to ensure that he will do the deed, the king imprisons Jack Tucker and orders Crispin to find the Stone before Parliament convenes in three days’ time – or Jack will hang for treason …

When Crispin Guest finds himself trapped in circumstances outside his control, he must rely on the wits of his young apprentice, Jack Tucker, to do the rescuing. Crispin awakens in a strange bed after a night of passion when he finds a woman dead, murdered. Drunk, Crispin scarcely remembers the night before. Did he kill her? But when other young women turn up dead under similar circumstances, he knows there is a deadly stalker loose in London. Could it have to do with the mysterious Tears of the Virgin Mary kept under lock and key by a close-lipped widow, a relic that a rival family would kill to get their hands on? What does this relic, that forces empathy on all those surrounding it, have to do with murder for hire? With Crispin shackled and imprisoned by the immutable sheriffs who would just as soon see him hang than get to the real truth, Jack hits the ground running and procures the help of a fresh young lawyer to help them solve the crime.

A missing Holy Relic. A mysterious and beautiful woman. Two murdered monks: Crispin Guest tackles his most intriguing investigation to date. 1390. Hailes Abbey, Gloucestershire, England. Two monks lie murdered, their Holy Blood relic stolen: a relic that is said to run liquid for the sinless and remain stubbornly dry for the sinner. Unwilling to become involved in a bitter dispute between a country monastery and Westminster Abbey, the disgraced former knight Crispin Guest attempts to return the relic to Hailes where it belongs, but somehow it keeps returning to his hands no matter what. As he tries to shield a former nemesis from a charge of murder while becoming entangled with a mysterious and beautiful woman caught between Church politics and the dangerous intrigues of King Richard's court, Crispin begins to suspect that someone at Westminster is conspiring with the assassins. Can the Blood of Christ point to the killer?

London, 1392. Strange mischief is afoot at St Modwen's Church. Are corpses stalking the graveyard at night, disturbing graves, and dragging coffins? When a fearful Father Bulthius begs Crispin Guest for his help, he agrees to investigate with his apprentice, Jack Tucker, intrigued by the horrific tales. Meanwhile, an urgent summons arrives from Crispin's former love, Philippa Walcote. Her seven-year-old son, Christopher, has been accused of murder and of attempting to steal a family relic - the missing relic of St Modwen. Who is behind the gruesome occurrences in the graveyard? Is Christopher guilty of murder? Crispin faces a desperate race against time to solve the strange goings-on at St Modwen's and prove a child's innocence.

An ancient and mysterious book leads Crispin Guest into a deadly maze in this latest medieval noir mystery. Crispin Guest, Tracker of London, is enjoying his ale in the Boar’s Tusk tavern – until a stranger leaves a mysterious wrapped bundle on his table, telling him, "You'll know what to do." Inside is an ancient leather-bound book written in an unrecognizable language. Accompanied by his apprentice, Jack Tucker, Crispin takes the unknown codex to a hidden rabbi, where they make a shocking it is the Gospel of Judas from the Holy Land, and its contents challenge the very doctrine of Christianity itself. Crispin is soon drawn into a deadly maze involving murder, living saints, and lethal henchmen. Why was he given the blasphemous book, and what should he do with it? A series of horrific events confirm his fears that there are powerful men who want it – and who will stop at nothing to see it destroyed.

A quest to find the ancient sword Excalibur quickly turns into a hunt for a determined killer for Crispin Guest. London, 1396. A trip to the swordsmith shop for Crispin Guest, Tracker of London, and his apprentice Jack Tucker takes an unexpected turn when Crispin crosses paths with Carantok Teague, a Cornish treasure hunter. Carantok has a map he is convinced will lead him to the sword of Excalibur – a magnificent relic dating back to King Arthur and the Knights of the Round Table – and he wants Crispin to help him find it. Travelling to Tintagel Castle in Cornwall with Carantok and Jack, Crispin is soon reunited with an old flame as he attempts to locate the legendary sword. But does Excalibur really exist, or is he on an impossible quest? When a body is discovered, Crispin’s search for treasure suddenly turns into a hunt for a dangerous killer.

The restoration of a crumbling manor house leaves Crispin Guest grappling with a troubling discovery in this entertaining medieval noir mystery. Restoring his recently inherited family home is a daunting enough task for young lawyer Nigellus Cobmartin without the addition of any unwelcome discoveries. But when workmen turning the crumbling manor house into a grand home for Nigellus and his companion, John Rykener, uncover a skeleton bound, tied and hidden in the wall - and holding the precious relic that went missing from his father's estate nearly twenty years ago - Nigellus immediately calls on London tracker Crispin Guest for help. Whose bones are they, and why was the valuable relic buried with the thief? Crispin and Jack are drawn into a mystery of dark secrets, family scandal and old grudges as they attempt to find the truth behind a load of old bones.