"A nonfiction companion to Magic Tree House #15: Viking Ships at Sunrise." A Nonfiction Companion to Magic Tree House #15: Viking Ships At Sunrise Vikings：A Nonfiction Companion to Magic Tree House #15: Viking Ships At Sunrise a nonfiction companion to Magic tree house #5 : Night of the ninjas a nonfiction companion to Magic tree house #23, Twister on Tuesday a nonfiction companion to Magic tree house #8, Midnight on the moon "A nonfiction companion to Magic tree house #53: Shadow of the shark" A Nonfiction Companion to Magic Tree House #10: Ghost Town at Sundown A nonfiction companion to magic tree house #43:Leprechaun in Late Winter a nonfiction companion to Magic tree house #22 : Revolutionary War on Wednesday