Telos, the Warden is a solo-only boss that is intended for players with a high combat level. He is an elemental born from the Anima Mundi who guards and protects the Heart of Gielinor. He is billed as the toughest solo boss monster in RuneScape. His chamber is accessible through a large "tree" like structure in the middle of the dungeon. Players are able to attune a portal in the Max Guild to access Telos. Killing Telos is a possible Soul Reaper assignment. The assigned number of kills can vary between 2 and 8. Obtaining all of Telos' unique drops will unlock the title, .