Nix, Garth. <br/><br/>
Mister Monday 
Garth Nix. 
 - New York :  Scholastic,  c2003. 
 - 361 p. ;  20 cm. 
 - Keys to the kingdom ;  bk. 1 .
 - Keys to the kingdom ;  bk. 1. .
<br/><br/> Arthur Penhaligon receives the first key from a mysterious man named Mr. Monday and is immediately swept into a web of danger involving creatures from another realm. 
<br/><br/> 800  Lexile. 
<br/><br/>
<br/><br/><label>ISBN: </label>9780439551234 (pbk.)  5.99 0439551234 (pbk.) 9781413111262 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Locks and keys--Juvenile fiction
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Fantasy fiction.<br/>Science fiction.