Gargoyle

About
Gargoyles are located on the 3rd floor of the Slayer Tower. You can get here by clicking on the Monster Teleport, then click on "more monsters" then "Slayer Dungeons", and finally "Slayer Tower".

Gargoyles are fairly easy monsters that require a slayer level of 75 to be killed. They drop a ton of great stuff. They mostly drop gems and coins but also often drop Clue Scrolls. Bring some food and you'll be fine!