Out Of The Locked Room

Sitting crossed-leg on the ground, Lin Sanjiu inspected the remaining half of the lock in front of her under the dazzling light. The warehouse was shaking from time to time. With every boom, there was a subsequent shudder, causing dust to fall from the ceiling and eliciting a tremble from Lin Sanjiu. However, it did not feel like an earthquake as the rhythm was too consistent. 

After what seemed like an eternity, Mrs. Manas's voice rang out and shattered the dismal silence, "The corpse is trying to get back into the pocket dimension." 

Lin Sanjiu continued to examine the lock. After a short while, her eyelashes fluttered. "The corpse wants to return to the warehouse, not the pocket dimension."

"What's the difference?"