The Boxcar children investigate the disappearance of a student's research paper from an observatory and the subsequent disappearance of another student.


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Series

Featured Series

105 primary books106 released books

#59 in The Boxcar Children

The Boxcar Children is a 106-book series with 106 released primary works first released in 1924 with contributions by Gertrude Chandler Warner, Shannon Eric Denton, and Charles Tang Gertrude Chandler Warner.

#1
The Boxcar Children
#3
The Yellow House Mystery
#4
Mystery Ranch
#5
The Boxcar Children 5-8
#7
The Woodshed Mystery
#8
The lighthouse mystery.
#10
Schoolhouse Mystery
#11
Caboose Mystery
#12
Houseboat Mystery
#13
Snowbound Mystery
#14
Tree House Mystery
#17
Mystery Behind the Wall

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