Invisible Ink is an achievement that requires the player to use a ring of kinship on a player made fire inside a Dungeoneering floor.
Trivia[]
- This achievement used to be a task prior to the release of the Achievements System on 18 April 2017.
- The name of this achievement is a Lord of the Rings reference, to the way the One Ring's text only appears when the Ring is bathed in flame.