Mary Pope Osborne

Magic Tree House 1: Valley of the Dinosaurs

2011

Dinosaurs Before Dark (Full-Color Edition)

2012

Magic Tree House 8: Moon Mission!

2011

Tonight on the Titanic

1999

Eve of the Emperor Penguin

2008

Ancient Greece and the Olympics

2004

Dinosaurs Before Dark (Unabridged)

2006

Magic Tree House: Books 7 and 8: Sunset of the Sabertooth, Midnight on the Moon (Unabridged)

2003

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

2003

Magic Tree House: Books 5 and 6: Night of the Ninjas, Afternoon on the Amazon (Unabridged)

2003

Hour of the Olympics (Unabridged)

2007

Night of the Ninjas (Unabridged)

2006