In August 1844, Brooke and Keppel forced out the Arab sharifs, destroyed Sharif Sahib's stronghold at Patusin, forced out Sharif Muller and Pengiran Indera Mahkota (deposed governor of Sarawak) at the upper Undop which resulted in the First Lieutenant Charles Wade killed in action and deposed Sherif Jaffer, bringing relative peace to the coast. This made Wade the first whiteman to be a slained victim by the natives of Sarawak. The person who shot Wade with a rifle was later wounded by Mr. Simpson, an officer of the Phlegethon. With this settled, Brooke was then determined to pacify the Iban Dayaks of Skrang and led a strong troop to attack Rentap.