The Aeon originally formed to play music for the play Suuri Peto! (The Great Beast!), which was based on the writings of occultist Aleister Crowley. They felt the "magic" was strong, and the band took on a life outside the play. The Aeon features Aimo Huikka (mandolin, baglamas), Anna-Kaisa Kettunen (vocals), Antti Saarilamp (bass), Jesse Heikkinen (guitar), Lauri Sallamo (darbuka, drums), Mau Järvinen (violin, glockenspiel), and Teijo Klemettilä (electric accordion, cello).