Follows the adventures of a group of neighborhood children who create costumes from cardboard and use their imagination in adventures with knights, robots, and monsters.

Chiefly illustrations. "This is a Borzoi book published by Alfred A. Knopf"--Colophon.

The sorceress /by Jay Fuller and Chad Sell -- The huntress / by David DeMeo and Chad Sell -- The big banshee / by Katie Schenkel and Chad Sell -- The alchemist and the blacksmith / by Kris Moore and Chad Sell -- The prince / by Manuel Betancourt and Chad Sell -- The animal queen / by Molly Muldoon and Chad Sell -- The blob / by Vid Alliger and Chad Sell -- Professor Everything / by Cloud Jacobs and Chad Sell -- The gargoyle / by Michael Cole and Chad Sell -- The mad scientist / by Barbara Perez Marquez and Chad Sell -- The robot / by Vid Alliger and Chad Sell -- The army of evil / Chad Sell -- The bully / by David DeMeo and Chad Sell -- Megalopolis / by Jay Fuller and Chad Sell -- Summer's end / by all the creators of Cardboard Kingdom.