The Final Descent
In the conclusion to Yancey’s Monstrumologist series, the T. cerrejonensis, a dangerous reptilian creature that poisons its human prey and then swallows them whole, must be destroyed. But the true monster is Will Henry himself, now 16, often drunk and colder than ever. He surpasses the cruelty of his master, Warthrop, as he fights a crime organization for possession of the creature. When Dr. Warthrop fears that Wills’ loyalties may be shifting, he turns on him, determined to reclaim his young apprentice’s devotion, thus forcing Will to face the horrific monster alone.