Disappear is an emote unlockable by members using Loyalty points. It is bought from Xuan in Burthorpe or Varrock for 12,000 loyalty points.
When performing this emote the player throws a smoke bomb into the floor, disappears in a cloud of smoke, and then re-appears shortly after.
If a vengeance styled running animation is done, even if your player is legitimately on top of the designated spot, but your animation is not there yet, you wont cover the player on that spot remotely. You must directly be on the square in order to cover the other player.