THE CARDBOARD KINGDOM Written by Chad Sell, Jay Fuller, David DeMeo, Katie Schenkel, Kris Moore, Manuel Betancourt, Molly Muldoon, Vid Alliger, Cloud Jacobs, Michael Cole, Barbara Perez Marquez Art by Chad Sell Published by Knopf Books Release Date: June 5, 2018 Oh, what a summer you will have in the Cardboard Kingdom. Straight out of…