The Grimlock

"The second emperor of the Han Dynasty locked his least favorite wife in this urn for 10 years, to the day. They say you open it up, the same thing will happen to you."

- Balthazar about the history of the Grimlock.

The Grimlock is another magical and inescapable prison that resembles an urn and it is one of the magical artifacts in The Sorcerer's Apprentice.

Like the Grimhold, it is designed to trap and imprisoned dangerous and evil sorcerers for all time.

Balthazar locked himself and Horvath inside the Grimlock for 10 years before they both escaped seperately.

The Grimlock was destroyed by Horvath after his escape before he tried to completely Balthazar who was trapped in it by dropping it, but failed as Balthazar escaped from it.

The Grimlock itself apears to show images of the people who are/were trapped in it, because it shows Balthazar and Horvath after they are inside.