Chet Gecko doesn't believe in the supernatural. His idea of voodoo is his mom's cockroach ripple ice cream. But when a teacher reports seeing a monster by the light of a full moon, it falls to Chet and his sleek-winged partner, Natalie Attired, to answer the burning question: Is this the work of a vicious, supernatural werehamster on the loose? Or just another science fair project gone wrong?