Devious Minds

Walkthrough
First, you need to make the Monk a bowsword. Take the mithril two handed sword to Doric's house and use it on the whetstone. Then add a bowstring.

Give it to the Monk to get a fragile orb. You need to take this to the church in Entrana, and the only way to get it there is through the abyss. Go to the mouth of the river in the wilderness north of Edgeville and teleport there. Then make your way to the centre and use the law rift. Exit the portal, walk to the church, and use it on the altar.

Watch the cutscene, then talk to the High Priest. He will tell you to return to the original monk. You will find a dead one back at the River Salve. Talk to the High Priest again, then Sir Tiffy Cashien at Falador Park.

Reward

 * 1 quest point
 * 6500 smithing experience
 * 5000 fletching experience
 * 5000 runecrafting experience