Fay is now Winter, but the immense power isn't making life easier as war breaks out between the Seasons and other factions on Gaia. As Fay, Sam, Tyler, and their friends face their final test, Fay must decide if his newfound abilities are worth the cost.

At Janus University, Fay seeks to rid himself of the murderous spirit of Winter, while Sam tries to uncover her mother's role in the mystical world, Gaia. But they find more questions than answers.

High school isn’t easy for any gay teen, and on top of everything, Fay struggles to understand his supernatural powers—and keep them hidden from everyone but his best friend Sam. It’s almost too much for anyone to cope with, and it’s all Fay can do to endure. Then Fay and Sam come to the attention of a representative from Janus University, a college for people who display magical potential. Along with their classmate Tyler, the two friends are tipped into a precarious world of mystery and magic that they don’t yet understand. Their lives are about to change, but first they must complete—and survive—the university’s Trials. Romantic feelings start to bloom between Fay and Tyler, but before they can explore them, they must learn to deal with a new world that can be both beautiful and terrifying—especially when the dangerous source of Fay’s abilities is discovered.