The Forbidden Library is the Scholomance Academy mid-set event and we're getting loads of fun stuff! All the action begins next week when patch 18.2 arrives on September 8.

Quote From Blizzard

Deep beneath the campus grounds lies the cobweb-ridden inner sanctum of Scholomance Academy, where Headmaster Kel’Thuzad has sealed away many a leather-bound chronicle and magical “experiment” gone awry. With powerful forces of dark magic in proximity, only brave (foolish?) souls dare meddle in the midst of this Forbidden Library!

The Forbidden Library is a limited-time event with new content unlocking weekly!