Mutation by Roland Smith

After Grace and the dinosaur hatchlings’ rescue from Noah Blackwood, Wolfe and Ted take Marty, Grace, Luther, and Dylan to Brazil to aid in the search for Marty’s missing parents. The tweens and the two adults split into two traveling parities as they head towards Dr. Lansa’s jaguar preserve. Before and after the two groups arrive, several members of the preserve disappear into the rainforest with no trace. Finally only Marty, Grace, Dylan, and the hatchlings are left behind with Noah's henchmen close on their trail.

The final book of Cryptid Hunters will not disappoint fans of the series. Mutation is a dangerously exciting ride as Smith takes readers soaring along the Amazon, zip-lining through the rainforest, and pursing two determined baby dinosaurs. It seems Marty, Grace, Luther, and Dylan will do anything to keep the people they love safe from Noah’s clutches. What sets these books apart from other YA adventure novels is the way Smith integrates his past characters and settings into his current writings. Besides resolving Marty and Grace’s conflicts, Smith also settles unresolved dilemmas found in Sasquatch. Also, Smith uses the setting and characters from Jaguar as the stage for Mutation. Fans of these books will enjoy their characters being spotlighted again.