Casket of the Ages
From Multiversal Omnipedia
The Casket of the Ages was a wooden box in which the Pastmaster was sealed by the magic council of Megalith City, and subsequently buried for 800 years. The Casket was then dug up in present-day Megakat City by Jack and Tom, who freed the Pastmaster. It was then found by a pair of Enforcer pilots and taken to the Megakat City Museum of History, where it likely remains to this day.