A solitary blue /  Cynthia Voigt. 

 - New York :   Atheneum Books for Young Readers,   1983.   
 - 249 p. 
<br/><br/> Book three in the celebrated Tillerman Cycle.  <br/><br/> 
<br/><br/><label>ISBN: </label>9781442428805.  
<br/><br/><label>Dewey Class. No.: </label>FIC V871 1983