Professor Layton and the Eternal Eiva

At the beginning of the film Layton receives a letter from the famed opera singer, Jenice Kaitly, inviting them to see her newest performance. She also asks Layton, Luke, and Remi for assistance in a mystery, saying her friend Melina went missing one year ago but returned later as a seven year old girl saying she had found the secret of eternal life. Naturally, the case fascinates Layton and his