Who currently owns the rights to The Hardy Boys mysteries (Specifically the Casefiles Series)?

Answer 1

In 1979, after 52 years and 58 titles (plus the didactic Hardy Boys' Detective Handbook), Grosset & Dunlap lost the rights to publish any new Hardy Boys tales in a protracted court battle with the Stratemeyer Syndicate. They did retain the right to continue publishing these 58 titles (referred to by some Hardy Boys enthusiasts as the canon) and continue to do so to this day, despite several changes in ownership. In the meantime, Simon & Schuster continued the series in the Hardy Boys Digest series of paperback books. In 2005 the venerable Digest series was ended with volume 190 and a new series, The Hardy Boys: Undercover Brothers, was started. The Undercover Brothers series is supplemented by a series of graphic novels and, initially, a now-discontinued series of comic books. Also in 2005 Grosset & Dunlap gained permission to continue publishing more titles in hardcover, starting with Digest volumes 59 to 66.