Double Down (Double Danger Trilogy, Book 2 / Hardy Boys: Undercover Brothers, No. 26)

ATAC Briefing for Agents Frank and Joe Hardy

MISSION: Continue working undercover as part of teen movie start Justin Carraway's entourage to find out more about the unsolved murder of the celeb's least favorite paparazzo and other mysterious happenings.

LOCATIONA: Atlantic City, NJ.

POTENTIAL VICTIMS: One murder has already taken place. If the suspect isn't caught soon, anyone could be the killer's next victim.

SUSPECTS: Everyone seems to go crazy when it comes to teen screen superstars - but now there really is a crazy person running around...and he or she may be closer than anyone thinks!