5pm, Rehoboth Beach Public Library, 226 Rehoboth Avenue, Rehoboth Beach. Guests can enjoy an evening of dancing and sleuthing as attendees try to solve the "murder" of Scott Mahoney, found dead on the night of Gladstone High's 1986 prom, For more information about the Murder Mystery Party and other events at the library, call 302-227-8044 or email lauren.mccauley@lib.de.us. All programs are free of charge.