Blyton, Enid <br/><br/>
Five have a mystery to solve 

 - UK:  Hodder Headline Limited;  2015 
 - 148 
 - The Famous Five [Vol. 20] .
<br/><br/><label>ISBN: </label>9780340894736 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English Literature<br/>Literature<br/>Short Children Story
<br/><br/><label>Dewey Class. No.: </label>823  / B629f 2015