Mary Pope Osborne

Dinosaurs Before Dark

Tonight on the Titanic

Night of the Ninjas

Mummies in the Morning

Dolphins at Daybreak

Summer of the Sea Serpent

Magic Tree House Collection: Books 1-8 (Unabridged)

Magic Tree House Collection: Books 9-16: #9: Dolphins at Daybreak; #10: Ghost Town; #11: Lions; #12: Polar Bears Past Bedtime; #13: Volcano; #14: Dragon King; #15: Viking Ships; #16: Olympics (Unabridged)

Dinosaurs Before Dark (Unabridged)

Magic Tree House Collection: Books 17-24 (Unabridged)

Magic Tree House: Books 1 and 2: Dinosaurs Before Dark, The Knight at Dawn (Unabridged)

Magic Tree House Collection: Books 25-32: Stage Fright on a Summer Night; Good Morning, Gorillas; Thanksgiving on Thursday; and more (Unabridged)