Title: Hamstersaurus Rex vs. Squirrel Kong (Hamstersaurus Rex Series #2), Author: Tom O'Donnell
Title: Hamstersaurus Rex Gets Crushed (Hamstersaurus Rex Series #3), Author: Tom O'Donnell
Title: Hamstersaurus Rex vs. the Cutepocalypse (Hamstersaurus Rex Series #4), Author: Tom O'Donnell