All Etta Spencer wanted was to make her violin debut when she was thrust into a treacherous world where the struggle for power could alter history. After losing the one thing that would have allowed her to protect the Timeline, and the one person worth fighting for, Etta awakens alone in an unknown place and time, exposed to the threat of the two groups who would rather see her dead than succeed. When help arrives, it comes from the last person Etta ever expected—Julian Ironwood, the Grand Master’s heir who has long been presumed dead, and whose dangerous alliance with a man from Etta’s past could put them both at risk. Meanwhile, Nicholas and Sophia are racing through time in order to locate Etta and the missing astrolabe with Ironwood travelers hot on their trail. They cross paths with a mercenary-for-hire, a cheeky girl named Li Min who quickly develops a flirtation with Sophia. But as the three of them attempt to evade their pursuers, Nicholas soon realizes that one of his companions may have ulterior motives. As Etta and Nicholas fight to make their way back to one another, from Imperial Russia to the Vatican catacombs, time is rapidly shifting and changing into something unrecognizable… and might just run out on both of them.

Scarlett has never left the tiny island where she and her beloved sister, Tella, live with their powerful, and cruel, father. Now Scarlett’s father has arranged a marriage for her, and Scarlett thinks her dreams of seeing Caraval, the far-away, once-a-year performance where the audience participates in the show, are over. But this year, Scarlett’s long-dreamt of invitation finally arrives. With the help of a mysterious sailor, Tella whisks Scarlett away to the show. Only, as soon as they arrive, Tella is kidnapped by Caraval’s mastermind organizer, Legend. It turns out that this season’s Caraval revolves around Tella, and whoever finds her first is the winner. Scarlett has been told that everything that happens during Caraval is only an elaborate performance. But she nevertheless becomes enmeshed in a game of love, heartbreak, and magic with the other players in the game. And whether Caraval is real or not, she must find Tella before the five nights of the game are over, a dangerous domino effect of consequences is set off, and her sister disappears forever.

When Griffin’s first love and ex-boyfriend, Theo, dies in a drowning accident, his universe implodes. Even though Theo had moved to California for college and started seeing Jackson, Griffin never doubted Theo would come back to him when the time was right. But now, the future he’s been imagining for himself has gone far off course. To make things worse, the only person who truly understands his heartache is Jackson. But no matter how much they open up to each other, Griffin’s downward spiral continues. He’s losing himself in his obsessive compulsions and destructive choices, and the secrets he’s been keeping are tearing him apart. If Griffin is ever to rebuild his future, he must first confront his history, every last heartbreaking piece in the puzzle of his life.