The Crumbling Tower
From Diablo Wiki
Trigger: Enter the Lyceum
Completion Details: Disrupt the Cultist's rituals.
Upon entering the Lyceum, a cultist summoner will express surprise at the hero's entrance, ordering his minions to stop the player and allow the cultist's to perform their dark rituals in the darkened crumbling tower. The hero will then play football with some cultist heads.
The entry corridor in the Lyceum has a unique map tile, but otherwise it uses all of the art assets and dungeon configurations from the Tristram Cathedral. The map spawn for the crumbling tower will usually end up being about as large as the first cathedral level. Instead of skeletons and various zombies, it will be filled with mostly Dark Cultists and Dark Summoners and the cultist's pets, such as hellions and berserkers. Elite packs will also spawn in the Lyceum, normally about three packs for an entire clear of the dungeon.
Eventually, as the player makes their way through the tower, the event will update to inform them that they have to disrupt three rituals, which are randomly placed around the dungeons. The ritual areas are black circles on the ground, crackling with red lightning, and surrounded by a group of cultists. The cultists performing the ritual are able to summon both Hellions and Berserkers at a fairly fast rate. After the three rituals have been disrupted you will need the Tortured Soul, a superunique Thrall.
Once he is disposed of the event will be complete.
This event was not available until Patch 1.0.3, because the Lyceum was not able to spawn prior to the patch.
The Crumbling Tower is in some way involved in the following achievement(s).
| No Stone Unturned
|10|| Explore the following dungeons in Act I.
The Crumbling Tower can appear as a Bounty.
A video of the event:
Entrance to The Lyceum.
|Quests & Events of Diablo III  Act I Act II Act III & Act IV Act V|
|Act II Quests||Act II Events |
|Quests Act III||Events Act III||Quests Act IV |