A trip to a remote lake in northern Ontario with his grandfather doesn't thrill Steve, especially since his twin brother, DJ, was taken to Central America. Matters start to look up when his grandfather tells Steve about the mysterious death of the artist Tom Thomson and sets him the task of finding Thomson's missing skull. Steve loves mysteries, but when odd things begin happening and strange people start threatening him, Steve wonders whether this is part of his grandfather's plan. Is this still a simple puzzle, or is something far more sinister going on? In this thrilling prequel to Lost Cause and Broken Arrow, the history- and mystery-loving Steve ends up in remote northern Ontario.

Steve thinks a trip to Europe is out of the question—until he hears his grandfather's will. Suddenly he's off to Spain, armed with only a letter from his grandfather that sends him to a specific address in Barcelona. There he meets a girl named Laia and finds a trunk containing some of his grandfather's possessions, including a journal he kept during the time he fought with the International Brigades in the Spanish Civil War. Steve decides to trace his grandfather's footsteps through Spain, and with Laia's help, he visits the battlefields and ruined towns that shaped his grandfather's young life, and begins to understand the power of history and the transformative nature of passion for a righteous cause. Steve's adventures start in The Missing Skull, part of The Seven Prequels and continue in Broken Arrow, part of The Seven Sequels.

Steve thinks he made the right choice turning down a snowy week with his cousins at a cabin in northern Ontario in favor of a relaxing (and perhaps romantic) time under the Spanish sun with his friend, Laia. But when an email from his brother DJ arrives, implicating their grandfather in some shadowy international plots involving nuclear bombs, Steve and Laia immediately put aside all thoughts of a lazy, sun-drenched vacation. In a desperate attempt to find out if Steve’s grandfather was a Cold War-era spy, they crack mysterious codes, confront violent Russian mobsters, dodge spies, unearth a bomb and avoid nudists. But the more they uncover, the more Steve whose side was Grandpa really on? Broken Arrow is the sequel to both The Missing Skull, part of The Seven Prequels and Lost Cause, part of Seven (The Series).