Warner, Gertrude Chandler,  1890-1979. <br/><br/>
Tree house mystery  
Gertrude Chandler Warner ; illustrated by David Cunningham. 
 - Chicago,  A. Whitman  1990, c1969 
 - 127 p. :  ill. ;  20 cm. 
 - The Boxcar Children Mysteries  #14 .
 - Warner, Gertrude Chandler,  1890-1979.  Boxcar children mysteries. .
<br/><br/> Reprint. Originally published: 1969. 
<br/><br/> Six children help solve the mystery of a missing spyglass that has kept two brothers feuding for years. 
<br/><br/> 470  Lexile. 
<br/><br/><label>ISBN: </label>0590426745 (pbk.) :  $3.99 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mystery and detective stories.
<br/><br/><label>LC Class. No.: </label>PZ7.W244  / Tr 1990 
<br/><br/><label>Dewey Class. No.: </label>[Fic]