The year is 2320. Andi Lloyd is content with her life as the assistant to her adoptive father, a starship doctor, but her secure world turns upside down when she begins uncovering secrets from her past. When her father mysteriously starts losing his mind, she finds that she can no longer count on him to guide or help her. With mutiny breaking out on the ship, and two factions desperate for a valuable secret she holds, she must race to save her father and herself before time runs out.

It was supposed to be a routine check of a parched planet. That was what Andi expected when she joined the small exploration team, but when their shuttle crash landed, the unthinkable happened—they encountered intelligent life. Now stranded on the strange world, the team accidentally angers the iron-fisted leader of the village, and the compassionate intervention of a young native named Elasson may be all that's keeping them alive. Their shuttle seems beyond repair, the oppressive heat is sapping their strength, and the local ruler is determined to execute them. Can Andi help find a way to escape before it's too late?

On their way back to Earth from the newly discovered world of Kainus Ge, the Surveyor rescues the personnel of a malfunctioning science station. Young medical assistant Andi quickly befriends the newcomers, particularly the charming captain, but things get complicated when the scientists offer the impossible—a way to improve the barren planet and the lives of all its inhabitants. There's only one problem: their solution requires the Surveyor to enter the one area of the galaxy which is off-limits to travel. As the Captain struggles with his decisions, Andi and her father become suspicious of the “accidents” that keep happening on the ship. Could it be coincidence, or is someone trying to sabotage their mission? Can they uncover the truth in time to stop the Captain from wrecking his career and losing his ship forever?

Nothing is as it should be. After weeks of boredom, Andi is excited when the Surveyor is called upon to rescue a freighter that mysteriously vanished in uncharted space. Excitement quickly turns to unease when the ship encounters an unknown phenomenon—a cloud that appears not to exist. But with the freighter's crew in danger, the Surveyor has no choice but to venture into unknown territory. As soon as they enter the cloud, its unstable effects wreak havoc on the ship. They're flying blind. Every piece of equipment is malfunctioning. And every member of the crew is unable to think straight or act like themselves—except Andi. Now she's expected to guide them through the predicament with no previous command experience and no one to turn to for support. And with each passing hour, it becomes clear that if they don't escape the cloud soon—they won't escape it at all.

Andi Lloyd is more comfortable than most with interstellar travel, but she's not prepared for the perils and peculiarities of a world she has all but forgotten—the planet Earth. As the Surveyor undergoes repairs, her brother August receives a message with news that will send both of them across the world to a place he never wanted to visit again. Neither of them are prepared to be thrust into a world of political intrigue amid the tangled forests and crumbling ruins of Austria. They aren't prepared to encounter wild animals and endure cross-country hikes. And they definitely aren't prepared to face it all alone. But despite the dangers they must press on into the unknown to find a way to save Andi's life, to decide the fate of Earth itself—and to rescue a lonely girl who just happens to be their little sister.

She doesn’t have much longer to live. Losing the last of the radialloy puts Andi’s life in immediate danger and sends her, August, and the Doctor rushing towards the demolished Qandon system in search of more. Their speeder is crippled, a powerful man is desperate to stop them—and they are running out of time. Meanwhile, Crash has escaped from prison and is hiding somewhere in Hungary, hunted by assassins who have instructions to kill him if Andi and the others don’t return to Earth in one week. The only person on Earth who can help him is Guilders, who very nearly despises him. Is there more radialloy out there? Can Crash and Guilders make it to safety? And will Andi ever be able to return to the way of life that she loves so much?

They're finally going back. Several months after the discovery of Kainus Ge, the Surveyor's crew has a new mission – to gather more information about the planet and try to negotiate a treaty with its ruler. Andi is excited at the prospect of seeing Elasson again, but the arrival of a legalistic attorney on the ship threatens to once again turn her way of life upside down. How has Elasson fared on the treacherous desert planet in their absence? Can the crew find a way to help the people of Kainus Ge, or will their presence throw the civilization into chaos? And with loved ones absent and rules and regulations forcing unwanted change on her home, how can Andi find her place in the world?

Their decision will change everything. After six months of absence, beloved chef Almira finally reappears on the Surveyor, bringing with her a vital clue to the location of her missing son. Her plea for help forces Andi and the rest of the ship’s inner circle to face an impossible decision. Obey orders and abandon the young man, or go after him and risk their careers, their futures, and their entire way of life. Their choice throws them into the middle of a decade-long mystery involving the loss of a ship, the death of a crew, and a secret that could unlock intergalactic travel. And when the search leads them to a form of artificial intelligence unlike anything they’ve ever seen, the answers may finally be within reach. Corruption, danger, and ambiguity abound. In the midst of it all, Andi must push through the confusion to piece together the puzzle, unmask an elusive enemy, and discover what it truly means to be human. Humanoid is the eighth book in the young-adult science fiction series Firmament, a saga chronicling the adventures of young medical assistant Andi Lloyd as she travels through the galaxy aboard the starship Surveyor and navigates the difficulties of family and faith. Join Andi and the rest of the crew as they speed into a world of intrigue and mystery that will open a brand new world of adventure when you start reading Humanoid today.

Some secrets run too deep. With hyper-warp travel temporarily banned, the Surveyor turns towards home and a new assignment. Someone is breaking the laws of space travel, someone who may have a hand in all the corruption Andi and the crew have endured over the past two years. Crash, shaken by recent events, confesses his longest-held secret to Andi and the Doctor—he has a son. When he tries to make amends, however, the boy is nowhere to be found. And the ensuing frantic search leads to a dark figure from Crash's past he never expected to reemerge. Each step they take to rescue the boy brings them closer to uncovering the enemy behind a plethora of previous adventures. Kidnapping, espionage, and conspiracy can't stop Andi from discovering the truth—but will the truth tear her family apart?Progenitor is the tenth book in the Firmament series, a sci-fi saga chronicling the adventures of young medical assistant Andi Lloyd as she travels through the galaxy aboard the starship Surveyor and navigates the difficulty of family and faith. If you enjoy stories featuring space travel, family secrets, and nefarious villains, then get ready to join Andi and Crash on their quest when you read Progenitor!