Levy, Elizabeth <br/><br/>
Invisible Inc. Volume 1  : mysteries 1-4 
/ by Elizabeth Levy ; illustrated by Denise Brunkus 
 - New York :  Scholastic,  2004 
 - [189] p. :  col. ill. 
 - Scholastic reader  , level 4 .
<br/><br/>The schoolyard mystery -- The mystery of the missing dog -- The snack attack mystery -- The creepy computer mystery. 
<br/><br/><label>ISBN: </label>0760756090 
<br/><br/><label>Dewey Class. No.: </label>Fic