Escape to Another Dimension?

Buzz! Kamar-Taj, the Sanctum. Xi Nian appeared within the ancient Sanctum with Pietro, a cat, and even a starfish in tow. None of the mages training in the Sanctum noticed this. Otherwise, they would have been so frightened that they questioned their entire lives as mages! "You're here." A calm female voice suddenly rang out from the corridor behind them. "Ancient One, did you foresee my arrival again?" Xi Nian smiled, turned around, and waved familiarly at the figure who had appeared behind them.