Higgins, Jack <br/><br/>
Valhalla exchange 
Jack Higgins 
 - 1st ed 
 - New York  DC Comics  2007 
 - 451 p. ; 18 cm 
<br/><br/> Description based on: no. 1 (Nov. 1999); title from indicia 
<br/><br/><label>ISBN: </label>9780007251759 
<br/><br/><label>Dewey Class. No.: </label>823.914 HIG