Private John Williams' Diver Helmet

Origin
Private John Williams was one of the members of the salvage team lead by Major-General Charles Pasley in 1839. When the air hose connected to his helmet became severed he experienced diver squeeze, a previously unknown ailment. The difference between the air pressure within his ear canal and the water outside his helmet caused intense pain and pressure. He would survive, but other divers would suffer this ailment through history. It is known to be quite painful, mimicking a crushing sensation inside ones own helmet.

Usage
The diving helmet has a mysterious pull on people. It makes people who long for adventure place it upon their head. When they do their head will be crushed from extreme atmospheric pressure. Because of this the helmet is kept within the Dark Vault under its own neutralizer field.

Collection
The helmet was collected after Pasley returned to the surface to get Williams medical attention. When a doctor tried the helmet on and his head was crushed, the Warehouse was notified.