Mary Pope Osborne has written at least 223 books. Their most popular book is Dinosaurs Before Dark with 56 saves with an average rating of 3.87⭐.
They are best known for writing in the genres Fantasy, Adventure, and Science fiction.
2005
#2 of 2 in Spider Kane
1992 • 142 pages
#4 of 33 in Magic Tree House
1994 • 74 pages