Avantasia is a German progressive metal supergroup project created by Tobias Sammet, vocalist of the band Edguy. Avantasia is often referred to as a rock opera, as it features the participation of many renowned vocalists and musicians.
The project's title is a portmanteau of the words "avalon" and "fantasia" ("fantasy") and describes "a world beyond human imagination" (a quotation from the booklet).
The project consists of three different installments. The first is a self-titled single and two full-length albums with the subtitle The Metal Opera. The second consists of the EPs Lost in Space Part I & II and the The Wicked Trilogy, composed of the albums The Scarecrow, The Wicked Symphony and Angel of Babylon. The third installment begins with the full-length album The Mystery of Time.