The ironwood tree /  Holly Blacka and Tony Diterlizzi. 

 - NY :   Simon and Schuster,  c2004. 
 - 108p 
 -  The Spiderwick Chronicles; bk.4   .
<br/><br/><label>ISBN: </label>9780689859397  
<br/><br/><label>Dewey Class. No.: </label>FIC B561i 2004