21 books in series

Magic Tree House "Merlin Missions"

Magic Tree House "Merlin Missions" is a 21-book series with 21 primary works first released in 2001 with contributions by Mary Pope Osborne.

#1
Christmas in Camelot

2001 • 13 Readers • 128 pages 4

#2
Haunted castle on Hallows Eve

2003 • 10 Readers • 113 pages 3.7

#3
Summer of the sea serpent

2004 • 13 Readers • 111 pages 4

#4
Winter of the ice wizard

2004 • 11 Readers • 110 pages 3.8

#5
Carnival at candlelight

2004 • 14 Readers • 130 pages 3.7

#6
Season of the sandstorms

2005 • 9 Readers • 130 pages 4

#7
Night of the New Magicians

2006 • 10 Readers • 111 pages 3.8

#9
Dragon of the Red Dawn

2007 • 9 Readers • 121 pages 3.7

#10
Monday with a Mad Genius

2007 • 9 Readers • 128 pages 4

#11
Dark Day in the Deep Sea

2008 • 14 Readers • 130 pages 4.2

#12
Eve of the Emperor Penguin

2008 • 10 Readers • 128 pages 4

#13
Moonlight on the Magic Flute

2009 • 10 Readers • 128 pages 4

#17
A Crazy Day wth Cobras

2010 • 5 Readers 3

#18
Dogs in the dead of night

2011 • 7 Readers • 130 pages 3

#21
Stallion by Starlight

2013 • 6 Readers • 120 pages 4

#22
#24
Soccer on Sunday

2014 • 7 Readers • 146 pages 4.5

#25
Shadow of the Shark

2015 • 4 Readers • 128 pages

#26
Balto of the Blue Dawn

2016 • 5 Readers • 128 pages 3