All Fired Up

Official quest description: Over the years, the kingdoms of Asgarnia and Misthalin have become increasingly uncomfortable about the possibility of threats from the Wilderness and Morytania. King Roald has taken matters into his own hands and has commissioned a network of beacons to be built across the land, from the Temple of Paterdomus at the border of Morytania, along the northern borders of Misthalin and Asgarnia, and up along the western border of the Wilderness. The communication network is already in place, but King Roald could use a little help making sure everything is ready to go, in the event of emergency....
Release date: 26 August 2008
Start: Talk to King Roald in the Varrock Palace throne room.
Difficulty: *****
Length: Short
Members only: Yes
Requirements:
43 firemaking
Completion of Priest in Peril
Items needed:
20 logs of any same type
Another 20 logs of any same type
Another 5 logs of any same type
Tinderbox.
Optional:
It is recommended that you bring the items above in the form of the first 20 logs with you, a woodcutting axe for cutting the other 20 logs from the normal trees between the beacons, and 5 logs of any type to relight the first beacon, along with the required tinderbox.
Monsters to kill: None
Spoiler warning: Plot and/or ending details follow.
Introduction

Blaze Sharpeye's detailed explanation of the complicated technique used to light the braziers.
After the Priest in Peril quest, King Roald is worried of possible invasion from the Wilderness and Morytania. So, he had a beacon lighting system set up. The player must go from beacon to beacon, testing them in case a real invasion should occur.
edit Walkthrough
The beacon network
The locations of some of the beacons on the world map
Talk to King Roald located in the Varrock Palace. His majesty will tell you that he is making a system to warn Varrock of possible attacks from the Wilderness and Morytania using beacons.

Blaze and his beacon.
He will tell you to see Blaze Sharpeye who is located at the beacon near the River Salve, on Silvarea mountain.
The locations of the beacons are indicated by the Fired Up Beacon icon () on the minimap and world map. . Speak to Blaze Sharpeye, who will tell you about the beacon system. and he will have you test the beacons. You will require 20 logs (of any type) and a tinderbox. (They agreed that if it were a real emergency, Gnomish firelighters will be used in place of regular logs.)
Lighting the beacon
Use the logs on the beacon and then light it on fire with a tinderbox. With the flames ablaze, he will tell you to talk to Squire Fyre. She can be found near the limestone quarry, west of the Odd Old Man, the starting point of the Rag and Bone Man quest.
Another beacon
Squire Fyre will tell you to light another beacon near her, after seeing that the first beacon has been lit. This also requires 20 identical logs (of any type) and a tinderbox.
After lighting the beacon, go back to Blaze Sharpeye. Blaze Sharpeye will confirm that he sees the second beacon lit, and informs that the fire is dying in the first beacon.
Adding more firepower
Use five logs (of any kind) on the first beacon to rekindle the fire. Don't leave yet - talk to Blaze again. This satisfies Blaze, and he will tell you the beacon network test is successful, and tells you to inform King Roald.
Go back to Varrock Palace, and talk to King Roald for the reward.
Congratulations! Quest complete.