These are all the Morgan le Fay missions:
1: Dinosaurs Before Dark
2: The Knight at Dawn
3: Mummies in the Morning
4: Pirates Past Noon
5: Night of the Ninjas
6: Afternoon on the Amazon
7: Sunset of the Sabertooth
8: Midnight on the Moon
9: Dolphins at Daybreak
10: Ghost Town at Sundown
11: Lions at Lunchtime
12: Polar Bears Past Bedtime
13: Vacation Under The Volcano
14: Day of the Dragon King
15: Viking Ships at Sunrise
16: Hour of the Olympics
17: Tonight on the Titanic
18: Buffalo Before Breakfast
19: Tigers at Twilight
20: Dingoes at Dinnertime
21: Civil War on Sunday
22: Revolutionary War on Wednesday
23: Twister on Tuesday
24: Earthquake in the Early Morning
25: Stage Fright on a Summer Night
26: Good Morning Gorillas
27: Thanksgiving on Thursday
28: High Tide in Hawaii
Magic Tree House book #39 is called "Dark Day in the Deep Sea".
Yes, there is a book 46 in the Magic Tree House it's name is Dogs In The Dead Of Night.
Book #41 of the Magic Tree House series is called "Moonlight on the Magic Flute" and is scheduled for release on March 24, 2009.
== == The name of that book is the Eve of the Emperor Penguin.
It is the Magic Tree House 41th book.
The 3rd book in the Magic Tree House series is "Magic Tree House #3: Mummies in the Morning".
The 20th book in the Magic Tree House series is Dingoes at Dinnertime.
Yes there is. It is calledQueen of The Nile at Noon.Check on Wikipedia under Mary Pope Osborne. Click on Magic Tree House Series. Scroll down to Magic Tree House Merlin Missions then it is the last one on the list.
The highest magic tree house book is Book # 55, "Night of the Ninth Dragon."
The 44th Magic Tree House book is A Ghost Tale for Christmas Time and it was published in 2010.
The very last Magic Tree House book in the series is "Hurricane Heroes in Texas" which is book number 135.
Magic Tree House #48 Saturday in a Snowstorm Magic Tree House #49 Midday in a Mayan Kingdom Magic Tree House #50 Autumn in Ancient Egypt Magic Tree House #51 August in Arabia Magic Tree House #52 Riding Chariots in Rome