Dragontooth Island

Dragontooth Island is an island located in the north-east of Gielinor. The ghost captain near the small boat in Port Phasmatys will take the player there and back for 25 ecto-tokens, or 10 with the ring of charos (a) after completing the Ghosts Ahoy quest. Alternatively, players can ride for free after paying the ghost captain a one-off fee of 500 ecto-tokens.

The island plays a key role in the Ghosts Ahoy quest, being the island where the "book" is found. There is little else to do there beyond cutting evergreens using the Woodcutting skill, or recovering buckets of sap.

Jorral's Hot & Cold Clue Master Clue steps might take you to either the northern or southern part of the island.

As of the Elite Clue Scroll update on the 12th of June 2014, Dragontooth Island features a coordinate clue location as well.