In " A Knock from Under the Bed ", three children find themselves called from their bedroom to another world by an old friend who needs their help. Venturing through an unusual new land, the siblings discover a people in need of saving and some unexpected saviours. This story continues the adventures of Jill, Derrick, and Celeste as they discover the world their friends came from in the previous book, " The Snow Day that went Terribly Wrong ". Experience new discoveries and new adventures in this bizarre land. Includes additional information about the inhabitants of this land as well as a hand drawn map by Gerald the Octopus!