Priest in Peril

Go to the temple in Silvarea which is east of the earth altar.

Players with an invitation box can teleport twice to arrive outside the temple.

Knock at the large door of the temple.

Go north and enter the mausoleum.

Kill Cerberus.

Teleport to Varrock.

Talk to King Roald.

At this time you can bring the 25 unnoted pure essence to save a trip later.

Enter the Temple and kill a level 23 Monk of Zamorak to obtain a golden key.

Go outside and enter the Mausoleum to the north and through the gate.

Study the monuments.

Use the golden key on the one that has the iron key.

Fill a bucket with water from the well in the centre of the monument room.

Go back to the temple and climb to the top floor.

Use the iron key on the cell door and talk to Drezel.

Use the bucket of blessed water on the Morytania coffin.

Return to the mausoleum, enter the monument room, and speak with Drezel.

Talk to him again to give him 50 unnoted rune essence or 25 unnoted pure essence.

Quest complete!