In this audio play staged with 3D sound and visuals created for the planetarium dome, Allie calls on detectives Justus, Bob and Peter to uncover the secrets of her odd aunt, Mrs. Patricia Osborne. As masked figures gather by candlelight, a huge snake seems to coil among them. The original voice actors behind Justus Jonas, Peter Shaw and Bob Andrews bring the mystery to life. Running time is 90 minutes.

Details can change — check the event’s website before you go.