An epically hilarious, fully illustrated adventure series

Abbie, Jordan, and Eldon band together with their cryptid friends in an attempt to save the world in the final book in this fun series.

As summer draws to an end, Jordan and Abbie Grimsley are moving with their parents from the city into their long-lost grandfather's house in the Florida everglades. But before they settle into their new life, they're taking a completely ordinary, creature-free cruise to the Yucatan Peninsula.

Despite the mysterious history and strange recent events that have surrounded the Grimsley family, there's no reason to suspect this relaxing vacation to the ancient site of the Chicxulub Crater (thought to be caused by a massive asteroid that wiped out the dinosaurs sixty-six million years ago) will lead to the discovery of a never-before-seen super-cryptid and a final showdown between good and evil that will decide the fate of the entire world. Or is there...?

This book is part of a book series called Creature Keepers .

This book has been graded for interest at 8+ years.

There are 400 pages in this book. This book was published 2017 by HarperCollins Publishers Inc .

Peter Nelson is a screenwriter who lives in Los Angeles, California, with his wife, Diane, and their two sons, Charlie and Christopher. Herbert's Wormhole was Peter's First children's book. He wrote it without ever having met an actual alien or traveling through time, which made it a bit more challenging, but just as fun. Rohitash Rao was born in an exotic, faraway land called Hyderabad, India. He then grew up in another exotic, faraway land called Rancho Cucamonga, California. He now lives in a magical city on an island called Manhattan, where he works as an animator and director. Herbert's Wormhole was Rao's First children's book, much of which he illustrated while sitting on a broken stool in his apartment.