Nautilus Chamber of Akbadain
The Nautilus Chamber of Akbadain is a location found in Professor Layton and the Miracle Mask. It is located in the middle of a desert near Monte d'Or and is the third location Targent are trying to locate along with the Golden Garden (Professor Layton and the Last Specter) and the City Of Harmony (Professor Layton and the Eternal Diva). It is revealed once Akbadain is elevated to its original position.
Epilogue: The City of Miracles
After the credits roll, Jean Descole and Raymond are seen standing over the Nautilus Chamber, after appearing when Akbadain rose to its original position thanks to he and Professor Layton solving the ruins' final puzzle, saving Monte d'Or from being buried in sand in the process.
Before Descole can claim the last Azran legacy for himself, he is interrupted by Targent and their leader Bronev. Descole begins to charge at them, while avoiding their gun shots. Bronev then attacks him, throwing him down to the ground. As he is about to unmask him, Raymond throws a smoke bomb towards them and escapes with Descole. With Descole gone, Bronev orders his men to secure the Nautilus Chamber.