Sunken Pyramid

The Sunken Pyramid is a dungeon home to The Order of the Slayer Masters, allowing players to become a slayer master. To enter the dungeon, players are required to have 99 Slayer. Players should bring a ghostspeak amulet or cramulet in order to speak to Faiza, but these items are not required if the player has completed the Hard Morytania Tasks.

Getting there
To travel to the pyramid, players should get a boat from Menaphos by speaking to Portmaster Kags at the south-western ship plot in the Ports district.

Chest of Souls
There is a Chest of Souls inside the pyramid that when clicked, makes a ghost named Faiza appear. She will inform players that they can become their own slayer master by capturing the soul of slayer monsters, and will provide them with 25-50 ushabtis (the player's Slayer level determines the amount given), along with a Slayer Codex to keep track of slayer monsters that the player has captured.

Attempting to capture souls while on a slayer assignment has a higher chance of success, but this is not required. There are a total of 146 monster souls that need to be captured. Players must have an empty ushabti and the slayer codex to be able to capture souls from slayer monsters. Capturing a soul rewards a small amount of slayer experience.

In order to capture all 146 souls, players will need to have 117 Slayer (in addition to other requirements) This can be boosted to at level 111 using a wilder pie. To hand in souls, players should use them on the chest in the pyramid.

Slayer Dungeon
Players can alternatively place the ushabtis in the empty chambers past the Chest of Souls. There are four chambers that can house monsters, with each chamber holding up to 5 monsters of the player's choice. This can be achieved by entering building mode, then using the filled ushabti on the hotspots provided. Once confirmed, the monster will be placed there permanently (until the player decides to remove it), and Slayer experience will be awarded.

Monsters placed in there are the same as you would find elsewhere, and will respawn quickly after being killed, due to the nature of the pyramid.

Notes about the player owned dungeon:
 * Strykewyrms cannot be placed, as the game will tell you that it cannot survive in foreign environments.
 * Placing any non-boss Order of Ascension member can result in any type can result in any non-boss member appearing (so placing a Scutarius can result in a Rorarius, Gladius, Capsarius or itself appearing when the dungeon is in use)

Rewards

 * After capturing 10 souls, players will unlock a new mural, which can be seen in the pyramid lobby.
 * After capturing 20 souls, players will get 1% extra slayer experience when they have a slayer helm equipped
 * After capturing 30 souls, players will unlock a new mural, which can be seen in the pyramid lobby.
 * After capturing 40 souls, players will get 2% extra slayer experience when they have a slayer helm equipped
 * After capturing 50 souls, players will get the ability to teleport the pyramid with the slayer codex.
 * After capturing 60 souls, players will get 3% extra slayer experience when they have a slayer helm equipped
 * After capturing 70 souls, players will unlock a new mural, which can be seen in the pyramid lobby.
 * After capturing 80 souls, players will get 4% extra slayer experience when they have a slayer helm equipped

Trivia

 * The pyramid was first mentioned at RuneFest 2016.