# Chaos Temple (hut)

 Location on World Map Frozen Waste Plateau ↑ Ice Path ← Chaos Temple (hut) → Lava Maze ↓ Forgotten Cemetery

The Chaos Temple is a structure in level 38 Wilderness, west of the Lava Maze. It contains a chaos altar where players can recharge and train their Prayer. Free players may visit the temple, however only members may take advantage of the altar's benefits.

## Getting There

The easiest way to get to the chaos altar is to use a burning amulet's teleport to Lava Maze entrance and run south-west. However, the spot can be often crowded by player killers due to its proximity to Revenant Caves and King Black Dragon Lair, so an alternative and likely a safer way to get there is to use Ghorrock Teleport on Ancient Magicks and run south, or Cemetery Teleport on the Arceuus spellbook and run north. Alternatively, players who have an Obelisk in their player-owned house can use it to teleport to level 44 Wilderness and then run south. Otherwise, this can be done from ANY Obelisk if the Hard Wilderness Diary is complete.

## General Features

The Chaos Temple hut in Level 38 Wilderness.

A wine of Zamorak spawns on a table inside the hut, which can only be obtained by casting Telekinetic Grab. Players who have completed the hard Wilderness Diary will receive them in noted form. The wine respawns approximately every 28 seconds.

Players who kill the Chaos Fanatic may use the chaos altar to recharge their Prayer as it is very close.

Due to the altar's use for Prayer training while being in multi-combat, it is frequently targeted by player killers.

There is also the Elder Chaos druid (NPC) who can unnote any type of bones for a fee of 50 coins per bone.

## Chaos Altar

Members can offer bones on the chaos altar, granting 3.5x Prayer experience per bone, the same bonus as a gilded altar with two burners lit. The Elder Chaos druid outside the temple can unnote a player's bones for 50 coins each.

Geometric series representation of bones gained.

There is a 50% chance when offering a bone on this altar that it will not be consumed. These bones can be offered again, granting prayer experience and another 50% chance of not being consumed. Repeating this, on average this will result in a 100% gain in experience, meaning players can achieve the same prayer experience with half the bones compared to a gilded altar with two burners lit. A proof demonstrating this is below:

Starting with ${\displaystyle x}$ number of bones, we wish to solve for ${\textstyle S}$, the number of bones you can offer to the altar. At a gilded altar, ${\textstyle S=x}$ because you can only offer each of the ${\textstyle x}$ bones a single time. At this altar however, after offering the first ${\textstyle x}$ bones, 50% (or ${\textstyle 1/2}$) will be left remaining to be offered again, which is ${\textstyle {\frac {1}{2}}x}$ bones. Those bones can be offered again, which will leave us with ${\textstyle {\frac {1}{2}}({\frac {1}{2}}x)={\frac {1}{4}}x}$ remaining. This can be repeated infinitely many times, and the total number of bones offered to the altar is ${\textstyle S(x)=x+{\frac {1}{2}}x+{\frac {1}{4}}x+{\frac {1}{8}}x+{\frac {1}{16}}x...}$. Factoring out the x, we have ${\textstyle S(x)=x(1+{\frac {1}{2}}+{\frac {1}{4}}+{\frac {1}{8}}+{\frac {1}{16}}...)}$. The part in the parentheses is a well-known geometric sum that converges to 2, so ${\textstyle S(x)=x\sum _{n=0}^{\infty }2^{-n}=2x}$ given an infinite amount of time and ideal circumstances (never dying and losing bones, for instance). For example, if a player offers 1000 bones to this altar and continues until they run out, they should expect to receive as much experience as offering 2000 of the same type of bone to a gilded altar with two burners lit.