???? A fun, light, quick SF with quirky characters, interdimentional multi-verse theme along with mystery, monsters and fun dialogue. I would say this one falls in line with something similar to a Michael Crichton book.
It definitely keeps you turning the pages and grabs you right from page one. This is NOT hard sci fi! It finishes the last 1/3 of the book as mostly horror so a nice blend of fun for all.