00811cam a2200229 4500 121308930 TxAuBib 20060630120000.0 921110s1971||||||||||||||||||||||||eng|u 70130337 /AC 9780448089508 0448089505 TxAuBib Dixon, Franklin W. Danger on Vampire Trail [HC] / by Franklin W. Dixon. New York : Grosset & Dunlap, [1971] 175 p. : illus ; 20 cm. Hardy boys mystery stories, 50 The Hardy boys and two friends take a camping trip to the Rocky Mountains in an attempt to locate a gang of credit-card counterfeiters. 20060630. Hardy boys mystery stories, 50.