Thaltis

Thaltis was a second-rate mage with first-rate ambition. More of a rat than a man, he scratched and scurried his way through the Khult up to an undeservedly high rank. However, his meager power was not enough, and in RuneScape - Ragnarok he attempted to go for the cheese.

Events of RuneScape - Ragnarok
Thaltis's associate Sileo Umbra discovered that the Khult planned to use a superweapon to destroy all non-magic life on Gielinor, so he pushed Thaltis to attempt to assassinate Marat earlier than was planned. Thaltis, eager to get it done and become the new leader of the Khult, immediately armed himself and set out. While most of the Khult guards and checkpoints were busy with the battle for Varrock, he moved toward Marat and his officials. He tried to use his rank to get him through but a guard accosted him. Thaltis was forced to kill him and thus blow his cover. Desperately, Thaltis lunged towards Marat armed only with his dagger, but was blown to pieces.