Applegate, Katherine. <br/><br/>
The threat 
K.A. Applegate. 
 - New York :  Scholastic,  1998. 
 - 158 p. :  ill. ;  20 cm. 
 - Animorphs ;  #21 .
<br/><br/> The newest Animorph may prove a greater threat to the team than the Yeerks who are again threatening the world. 
<br/><br/>
<br/><br/><label>ISBN: </label>0590762540 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science fiction.<br/>Metamorphosis -- Juvenile fiction.
<br/><br/><label>Dewey Class. No.: </label>Fic. A6487t 1998 Bk.#21