Title rated 4 out of 5 stars, based on 35 ratings(35 ratings)
Book, 2012
Current format, Book, 2012, , Available .
Book, 2012
Current format, Book, 2012, , Available . Offered in 0 more formats
"Xaxon Yellowbearyd was the fiercest Viking warrior of his time. Now a map to his hidden treasure lies in the hands of Radius and Per. Together the cousins must decode the strange numbered grid on the map--and figure out the secret of the Viking's X and Y axes. As bandits pursue them, Radius and Per track down clues and use coordinate geometry in their quest for "treasure of the greatest measure"."--Dust jacket flap.
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