Jutting wall
The Jutting walls are Agility shortcuts to the Cosmic altar in Zanaris and in the Meiyerditch Laboratories Dungeon, near the entrance to the Tomb of Ivandis. There is always a "Damaged wall" opposite of it, with a narrow path in between. When a damaged wall is examined, the player will observe, "This wall has holes in it; looks damaged, but also suspicious." The eastern shortcuts requires 66 Agility to pass through, and the west one requires 46 Agility. To get to the Cosmic altar more quickly, players with sufficient agility can squeeze past the jutting walls; if they fail, they will continue through but spears will dart suddenly out of the suspicious holes, impaling the player twice for 20 life points each.
There is currently a glitch that may cause the spears to be invisible. Damage is still dealt.