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Mary Pope Osborne is an American author of children’s books. She is best known for the award-winning and bestselling Magic Tree House series, which has been translated into more than 30 languages. Growing up in a military family, Osborne traveled a lot and continued to do so as an adult, which influences her writing. The first of the Magic Tree House books, Dinosaurs Before Dark, introduces adventuring siblings Jack and Annie. Osborne has also written several books for children relating to mythology, historical fiction and fact, and more.

Bestsellers

Dinosaurs Before Dark
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Dinosaurs Before Dark
by Mary Pope Osborne
Dolphins at Daybreak
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Dolphins at Daybreak
by Mary Pope Osborne
Magic Tree House: Books 1 and 2: Dinosaurs Before Dark The Knight at Dawn
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Magic Tree House: Books 1 and 2: Dinosaurs Before Dark The Knight at Dawn
by Mary Pope Osborne
Ghost Town at Sundown
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Ghost Town at Sundown
by Mary Pope Osborne
Blizzard of the Blue Moon
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Blizzard of the Blue Moon
by Mary Pope Osborne
Balto of the Blue Dawn
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Balto of the Blue Dawn
by Mary Pope Osborne
Merlin Missions Collection: Books 1-8: Christmas in Camelot; Haunted Castle on Hallows Eve; Summer of the Sea Serpent; Winter of the Ice Wizard; Carnival at Candlelight; and more
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Merlin Missions Collection: Books 1-8: Christmas in Camelot; Haunted Castle on Hallows Eve; Summer of the Sea Serpent; Winter of the Ice Wizard; Carnival at Candlelight; and more
by Mary Pope Osborne
Lions at Lunchtime
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Lions at Lunchtime
by Mary Pope Osborne
Hurricane Heroes in Texas: Magic Tree House, Book 30
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Hurricane Heroes in Texas: Magic Tree House, Book 30
by Mary Pope Osborne
Magic Tree House Collection, Books 1-8: Dinosaurs Before Dark, The Knight at Dawn, Mummies in the Morning, Pirates Past Noon, Night of the Ninjas, Afternoon on the Amazon; Sunset of the Sabertooth; Midnight on the Moon
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Magic Tree House Collection, Books 1-8: Dinosaurs Before Dark, The Knight at Dawn, Mummies in the Morning, Pirates Past Noon, Night of the Ninjas, Afternoon on the Amazon; Sunset of the Sabertooth; Midnight on the Moon
by Mary Pope Osborne
Thanksgiving on Thursday
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Thanksgiving on Thursday
by Mary Pope Osborne
Summer of the Sea Serpent
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Summer of the Sea Serpent
by Mary Pope Osborne
Stage Fright on a Summer Night
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Stage Fright on a Summer Night
by Mary Pope Osborne
Merlin Missions Collection: Books 17-24: A Crazy Day with Cobras; Dogs in the Dead of Night; Abe Lincoln at Last!; A Perfect Time for Pandas; and more
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Merlin Missions Collection: Books 17-24: A Crazy Day with Cobras; Dogs in the Dead of Night; Abe Lincoln at Last!; A Perfect Time for Pandas; and more
by Mary Pope Osborne
Dragon of the Red Dawn
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Dragon of the Red Dawn
by Mary Pope Osborne

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Dinosaurs Before Dark
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Dinosaurs Before Dark
by Mary Pope Osborne
Narrated by  Mary Pope Osborne
#1 in Series
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Dolphins at Daybreak
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Dolphins at Daybreak
by Mary Pope Osborne
Narrated by  Mary Pope Osborne
#9 in Series
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Magic Tree House: Books 1 and 2: Dinosaurs Before Dark The Knight at Dawn
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Magic Tree House: Books 1 and…
by Mary Pope Osborne
Narrated by  Mary Pope Osborne
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Ghost Town at Sundown
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Ghost Town at Sundown
by Mary Pope Osborne
Narrated by  Mary Pope Osborne
#10 in Series
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Blizzard of the Blue Moon
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Blizzard of the Blue Moon
by Mary Pope Osborne
Narrated by  Mary Pope Osborne
#8 in Series
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Balto of the Blue Dawn
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Balto of the Blue Dawn
by Mary Pope Osborne
Narrated by  Mary Pope Osborne
#26 in Series
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Den Gorillas auf der Spur (Das magische Baumhaus 24)
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Den Gorillas auf der Spur (Das…
by Mary Pope Osborne, Das magische Baumhaus, Stefan Kaminski
Narrated by  Stefan Kaminski
#24 in Series
Audiobook (Unabridged) $7.05
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Im Land der ersten Siedler (Das magische Baumhaus 25)
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Im Land der ersten Siedler…
by Mary Pope Osborne, Das magische Baumhaus, Stefan Kaminski
Narrated by  Stefan Kaminski
#25 in Series
Audiobook (German-language Edition) $7.05
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Merlin Missions Collection: Books 1-8: Christmas in Camelot; Haunted Castle on Hallows Eve; Summer of the Sea Serpent; Winter of the Ice Wizard; Carnival at Candlelight; and more
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Merlin Missions Collection:…
by Mary Pope Osborne
Narrated by  Mary Pope Osborne
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Audiobook (Unabridged) $25.00
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Lions at Lunchtime
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Lions at Lunchtime
by Mary Pope Osborne
Narrated by  Mary Pope Osborne
#11 in Series
Audiobook (Unabridged) $6.00
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Hurricane Heroes in Texas: Magic Tree House, Book 30
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Hurricane Heroes in Texas:…
by Mary Pope Osborne
Narrated by  Mary Pope Osborne
#30 in Series
Audiobook (Unabridged) $8.00
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Magic Tree House Collection, Books 1-8: Dinosaurs Before Dark, The Knight at Dawn, Mummies in the Morning, Pirates Past Noon, Night of the Ninjas, Afternoon on the Amazon; Sunset of the Sabertooth; Midnight on the Moon
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Magic Tree House Collection,…
by Mary Pope Osborne
Narrated by  Mary Pope Osborne
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Audiobook (Unabridged) $24.00
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Thanksgiving on Thursday
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Thanksgiving on Thursday
by Mary Pope Osborne
Narrated by  Mary Pope Osborne
#27 in Series
Audiobook (Unabridged) $6.00
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Summer of the Sea Serpent
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Summer of the Sea Serpent
by Mary Pope Osborne
Narrated by  Mary Pope Osborne
#3 in Series
Audiobook (Unabridged) $6.00
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Stage Fright on a Summer Night
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Stage Fright on a Summer Night
by Mary Pope Osborne
Narrated by  Mary Pope Osborne
#25 in Series
Audiobook (Unabridged) $6.00
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Der Ruf der Delfine (Das magische Baumhaus 9)
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Der Ruf der Delfine (Das…
by Mary Pope Osborne, Stefan Kaminski, Das magische Baumhaus
Narrated by  Stefan Kaminski
#9 in Series
Audiobook (Unabridged) $7.05
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Merlin Missions Collection: Books 17-24: A Crazy Day with Cobras; Dogs in the Dead of Night; Abe Lincoln at Last!; A Perfect Time for Pandas; and more
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Merlin Missions Collection:…
by Mary Pope Osborne
Narrated by  Mary Pope Osborne
Explore Series
Audiobook (Unabridged) $25.00
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Dragon of the Red Dawn
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Dragon of the Red Dawn
by Mary Pope Osborne
Narrated by  Mary Pope Osborne
#9 in Series
Audiobook (Unabridged) $8.00
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A Big Day for Baseball: Magic Tree House, Book 29
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A Big Day for Baseball: Magic…
by Mary Pope Osborne
Narrated by  Mary Pope Osborne
#29 in Series
Audiobook (Unabridged) $8.00
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Dingoes at Dinnertime
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Dingoes at Dinnertime
by Mary Pope Osborne
Narrated by  Mary Pope Osborne
#20 in Series
Audiobook (Unabridged) $6.00
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