Slumbering Sanctuary

The Slumbering Sanctuary is a fourth level biome.

This old sanctuary quietly slumbers, lit by the glow of the strange, sap-like substance oozing from its walls. Its halls are eerily quiet, and countless statues litter the grounds. There is no way out- that is, without awakening the sanctuary.

Nothing likes to be awakened from their slumber, and these halls are no exception. The pulsing hues of the Sanctuary warm from blue to orange, and statues come alive when approached. Proceed with caution, or be slain for your trespass.

Access and exit
The Slumbering Sanctuary can initially only be accessed from the Insufferable Crypt, coming from the Ancient Sewers with the Ram rune. After defeating the Elite Caster and obtaining the Spider rune (see below), a passage from the Black Bridge also becomes available.

There are two normal exits out of the Slumbering Sanctuary, leading to the Clock Tower and to the Forgotten Sepulcher. Another exit, located behind a 2 BSC door, becomes available after beating the Giant once and leads to the Cavern.

Awakening the Sanctuary
When entering the level, the Sanctuary is in an 'inert' state, with a considerable number of enemies frozen as grey statues in the background. At the edges of the level, orange doors will prevent further progress. It should be noted that the only teleporters in this portion of the level are at the entrance and behind the switch.

Once the Ancient Temple Switch is activated, the level's coloration will change to orange and the music will change. The orange doors will now be open, and the statues will change into living enemies when approached. These enemies can be elites, and will not be rooted in place; as such, the statues should be approached with caution.

Spider rune
A Caster elite with the can be found here. It disappears after being defeated once.

Scrolls
The Slumbering Sanctuary contains 4 scrolls: 2 Power Scrolls (with a third located in a guaranteed Cursed chest) and 1 Dual-stat scroll, which cannot spawn in areas requiring the use of runes to access. On (3+ BSC) there is a bonus Power scroll. When 3 Boss Stem Cells are active, this biome has 3 guaranteed Scroll Fragments, and when 4/5 Boss Stem Cells are active, this biome has 4 guaranteed Scroll Fragments. Typically, most of these scrolls are only accessible after 'awakening' the Sanctuary.

Enemy tier and gear level scaling
In the table below, you will find the gear level and enemy tier of the Slumbering Sanctuary based on difficulty.

Boss Stem Cells rewards

 * 1 BSC: Treasure chest
 * 2 BSC: Chained items, Cavern exit
 * 3 BSC: Treasure chest

Chests and loot
There is one cursed chest and three normal chests accessible in the Sanctuary:


 * 1 Treasure chest
 * 1 guaranteed Cursed chest
 * 1 Treasure chest, which can only be accessed once the Sanctuary is awakened

Shops

 * 2 shops (1 weapons, 1 skill)

Secret areas

 * The blueprint for the Masochist mutation can be found in a secret area located in the wall in a narrow vertical passage with spikes at the bottom.
 * The blueprint for the Emergency Door can be found in a secret room where the player must reach the end without breaking any doors. This room does not always spawn, so it may require multiple runs to obtain.

Enemy blueprints

 * The blueprint for Wings of the Crow can be looted from Golems.
 * The blueprint for Pyrotechnics can be looted from Casters.

Enemies
In the table below, you will find which enemies are present in the Slumbering Sanctuary depending on difficulty level. For each enemy, blueprints they carry are indicated. When applicable, the minimum difficulty level for blueprint acquisition is specified in brackets.

Alchemist Grimoires
Main Article: The Alchemist

The Alchemist's Grimoire in one of his abandoned research labs reads:


 * Some say the sap that runs through the walls is flowing into the sewer network and causing the Malaise. But perhaps the problem can also be the solution?"

Another lab containing a "Research Notebook" can also be found:


 * ''Time is running out... literally. With all due respect, it can't contain the Malaise 'forever'.

It is unknown what the "it" was that the Alchemist was referring to here.