The Secret Code / 
Dana Meachen Rau. 
 - New York, NY :  Scholastic,  c1998. 
 - 31 p.:   col. ill.  18 cm. 
<br/><br/>Lex 390 
<br/><br/><br/>in English 
<br/><br/><label>ISBN: </label>9780545363051