Bell Jar of Time
Brilliant Room of Rooms
Battle of the Department of Mysteries
Time Room, Department of Mysteries
The Bell Jar of Time is stored within the Department of Mysteries in the exotic, clock-themed Time Room. Within the jar one can see what appears to be a time-loop acting upon a hummingbird: an egg becomes a chick, who grows to maturity and flies up inside the jar and back down to reform into the egg. Mesmerising and fascinating, the Unspeakables are said to use it to study time-related magic.