Skurzynski, Gloria. <br/><br/>
Cliff-hanger  
Gloria Skurzynski and Alane Ferguson. 
 - Washington, D.C. :  National Geographic Society,  2007, c1999. 
 - 158 p. :  maps ;  20 cm. 
 - National parks mystery ;  #3 .
 - Skurzynski, Gloria.  National parks mystery ;  #3. .
<br/><br/> Twelve-year-old Jack and his younger sister visit Mesa Verde National Park, where they delve into the park's history while gradually uncovering the mysterious past of their family's teenage foster child Lucky. 
<br/><br/> 670  Lexile.  670  Lexile. 
<br/><br/>
<br/><br/><label>ISBN: </label>9781426300929  4.99 079227654X (pbk.) 
<br/><br/><label>LCCN: </label>98008716 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Foster home care--Fiction.<br/>National parks and reserves--Fiction.<br/>Mystery and detective stories.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Mesa Verde National Park (Colo.)--Fiction.