The Musical Theatre of Anthem (MTA) is holding their annual Haunted House Workshop. Performers work for the month of October on developing, decorating, and designing a haunted house experience. All participants help to decorate the haunted house, as well as perform inside the house during the Halloween season. The workshop costs $95, is for ages 11 to 18, and runs from Oct. 3 through Oct. 30. MTA’s Haunted House is open to the public from Oct. 27 to 29. MTA is located at 42201 N. 41st Dr., Ste. 100. To register, visit musicaltheatreofanthem.org.