MOUNT CARROLL, ILLINOIS (April 14, 2023) — Timber Lake Playhouse (TLP), the premier professional summer theatre of northwest Illinois, is thrilled to announce that The Lightning Thief: The Percy Jackson Musical, an “electrifying” (Newsday) musical adaption of The New York Times bestselling novel written by Rick Riordan, book by Joe Tracz, music and lyrics by Rob Rokicki, will open at TLP on May 12 for one weekend.