While Danny and Matt are ice fishing along the Angle Inlet, they witness a strange plane crash. Neither of the men in the plane survives—and the only possible clue to their identity is a briefcase Danny retrieves from the wreckage. But the contents of the case only add to the mystery. Before all the confusion is unraveled, Danny and Matt find themselves on the trail of several drug smugglers.

This work is the only comprehensive guide to sequels in English, with over 84,000 works by 12,500 authors in 17,000 sequences.