Wolds apart 
[cover, introduction illustration by David Schleinkofer]. 
 - Boston  Houghton Mifflin  c1991. 
 - 752 p.  ill.  26 cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science fiction--Juvenile literature.