Demon Slayer/Quick guide

Walkthrough

 * Speak with the Gypsy in her tent in Varrock Square, give her 1 gp, and remember the incantation she mentions.
 * Speak to Sir Prysin located on the bottom floor of varrock castle about Silverlight.

First key

 * Go to north-west corner of the castle and climb the stairs.
 * Speak to Captain Rovin about the demon.

Second key

 * Go to the main floor north-east room that looks like a kitchen.
 * Use the bucket of water on the drain outside.
 * Climb down the manhole east of the castle
 * Take the west path down to the end and take key from floor.

Third key

 * Go to Wizards' Tower (south of Draynor Village)
 * Climb up stairs and talk to Wizard Traiborn.
 * He will ask for 25 bones,(noted will not work) bring him these and he will give you his key.

Delrith

 * Return to Sir Prysin and give him the keys.
 * Wield Silverlight and go to the Dark wizards by Varrock's south entrance. A cutscene will occur.
 * Defeat Delrith; right-click Delrith and banish him with the incantation seen earlier. The incantation varies from player to player; the gypsy will remind players of the incantation if forgotten.

Quest complete!