The Grand High Monster: A Monstacademy Mystery

The third and most mysterious Monstacademy Mystery yet!

There's a traitor at Monstacademy!

When Trixie returns after being suspended, her best friend Gloria doesn't seem herself. To make matters worse, the vampire is suddenly best friends with an exciting new monster. Is the new girl all that she seems, or are the Mean Ghouls up to no good?

When the most important monster in the country pays Monstacademy a visit, the threat of their school closing hangs over Trixie and her friends like a black...