Cave Trap (Casefile #115) and Darkness Falls (Casefile #89) are apparently going to be released as Undercover Brothers titles.
According to Amazon.com, they have a 7/3/06 release date but are currently listed as “Out Of Stock”.
Casefiles have been recycled as Undercover Brothers in Great Britain and it would seem as if that is going to happen here.
UPDATE: British Hardy Boys fan Ian Regan reports that these are, in fact, British editions. Why Amazon is listing them is a mystery.
7-22-06 UPDATE: Amazon is no longer listing these items. Truly a mystery worthy of Frank & Joe!