Books Written by Chris Grabenstein & James Patterson View Chris BooksNewsletter All THE TREASURE HUNTERS SERIES (8-12) THE MAX EINSTEIN SERIES (8-12) THE JACKY HA-HA SERIES (8-12) THE KATT-DOGG SERIES (8-12) THE I FUNNY SERIES (8-12) THE HOUSE OF ROBOTS SERIES (8-12) CO-AUTHORED STANDALONES Book 12016 Graphic Novel2020 Book 22017 Graphic Novel2021 Book 32023 View Chris BooksNewsletter
