1. The King will ask you to go and talk to Drezel in a Monastery east of Varrock.
   
   
2. Go out the east Entrance/Exit of Varrock and head a bit northeast. There is a Gate, open it and follow the Road. You will come to a Monastery. Knock on the Door to it and then pick the top Option.
   
   
3. Someone inside will tell you to go and kill a Dog. Go north and down a Trap Door. Slay the Temple Guardian (looks like a Dog) that walks around there.
   
   
   
   
4. Go back and knock on the Door again.
   
   
5. Now go and talk to the King in Varrock again. He will tell you that someone fooled you to kill that Dog and orders you to secure the Path that the Dog was guarding.
   
   
6. Go back to the Monastery and knock on the Door. This time you'll be let in. Go to the top Floor and talk through the Cell Door. When the Option comes, choose "Tell me anyway." and then "Yes.". He launches into a huge conversation about the history of the Kingdom and the River. Also he explains about the Vampire in the Coffin. Plus, he talks about the Zamorockians who captured him, and tells you to get the Key and rescue him.
   
   
   
   
7. Now kill a Level 30 Monk of Zamorak to get a Golden Key.
   
   
8. Go down the Trap Door again and follow the Path. You will enter a big Room with Monuments in a circle around a Well. Use the Golden Key on each monument in turn and you will swap it for an Iron Key.
   
   Note: Do not try and take from the Statues, they will hit you.
   
   
9. Use the Iron Key on the Cell Door to Drezel in the Monastery. Talk to him.
   
   
10. Get your Bucket and go down the Trap Door again. In the middle of the big Room there is a Well, use the Bucket on it.
    
    
11. Go back to Drezel and talk to him and he will enchant the Water for you. Now use it on the Vampire's Grave.
    
    
12. Talk to Drezel again, and then go back to the Dungeon. Go as far in it as possible and you will find Drezel again. Talk to him. You will now have to give him 50 Rune Essence.
    
    Note: You cannot give them to him as Notes, so you will have to take it to him in two rounds.
    
    
13. When you have given the last Essence to Drezel, you are done with the Quest!
    

Congratulations! You have completed the Priest In Peril Quest!