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

Polar Bears Past Bedtime (Unabridged)

2007

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

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

2005