He failed to save his sister.

Now a stable boy must join forces with two other teens and an elusive winged horse to free their world from a deadly plot to poison humanity.

In the sequel to Toxic, Kai battles Seekers and Unwanteds alone, desperate to save his family from Belial's evil schemes.

Lizzy attempts to save a friend from death with help from two strangers, and Taryn wrestles with the desire to use magic when he knows that it is wrong.