Wild west :: a nonfiction companion to magic tree house #10, Ghost town at sundown / A Nonfiction Companion to Magic Tree House #10: Ghost Town at Sundown Rain forests :：A nonfiction companion to magic tree house #6, Afternoon on the Amazon / Pirates :：A nonfiction companion to Magic Tree House #4, Pirates Past Noon / Space：a nonfiction companion to Magic tree house #8, Midnight on the moon a nonfiction companion to Magic tree house #23, Twister on Tuesday Ninjas and samurai :：a nonfiction companion to Magic tree house #5 : Night of the ninjas / Dog heroes :：a nonfiction companion to Magic tree house#46: Dogs in the dead of night / A nonfiction companion to magic tree house #6, Afternoon on the Amazon / Pirates：a nonfiction companion to Magic Tree House #4, Pirates Past Noon