Equestrian Detective Honoré—the sender of the mysterious voicemail—is a seasoned sleuth who is investigating the disappearance of horses at the Grooms’ House in Mystery at the Grooms’. It turns out he has arrived in Tokyo early and has decided to pass the time by investigating the secrets of Ginza Maison Hermès.

Honoré, who has solved many of the world’s most fiendish cases, mentions secrets hidden in the window displays of Ginza Maison Hermès, a case from 24 years ago, and a giant sculpture that has appeared in the middle of Ginza. Could these be hints about things that can be found in and around the Maison?

Play the message he left for us and listen carefully. This is where it all begins.