One of a Kind/Quick guide

Starting out

 * Talk to Mr. Mordaut in his office in Varrock Museum. (Chat options: 1-1, then accept the quest)
 * Read the book Hannibus Hunted.
 * Talk to Mr. Mordaut. (Chat options: 2-1-2-1)

Bob the Cat

 * Locate Bob the Cat with the catspeak amulet.
 * Ask about "A human to look after?" (Chat options: 2-2-2)

Unferth's house

 * Travel to Unferth's house in Burthorpe.
 * Ask about the hidden library (Chat options: 1-3-1-1-2)
 * Search bookcase.
 * Investigate fireplace.
 * Inspect table.
 * Remove carpet.
 * Enter trapdoor.

Robert the Strong's library

 * Search the desk in the centre of the room.
 * Investigate weapon rack. Take some rust from the weapons. (North side)
 * Use Iron oxide on emerald to get Animate Rock Scroll.
 * Read the Animate Rock Spell scroll by the statue to the south.
 * Talk to Hannibus. (Chat options: 1-1-2-1-1-4-2)
 * Search all bookcases. (West and east)
 * Look at the map. (South)

Forinthry Dungeon

 * Run to the Green dragons in the south east corner of the Forinthry Dungeon.
 * Hannibus will talk to you.
 * Run closer to the south east corner of the room.
 * Study Rock.

The mysterious statues

 * Read the Animate Rock Scroll by 2 of the 4 Mysterious statues and rotate.
 * Locations of the Mysterious statues:
 * East of the Seer's Village bank
 * North-west of the Karamja lodestone
 * North-west of the Ardougne lodestone
 * North of the Tower of Life (fairy ring )
 * Rotating all 4 statues gives access to 10,000 bonus experience in any skill.
 * Travel to the north-west corner of Entrana.
 * Read the Animate Rock Scroll by the Submerged statue (Chat options: 3-3)

Brimhaven Dungeon
(If you don't get the question about 'One of a Kind' go back to the entrance of the room and walk slow into the room again.)
 * Travel to the iron/steel dragons in Brimhaven Dungeon
 * Kill 3 iron dragons.
 * Head to the west wall by the Mysterious entrance to study the Dragonkin writing.

Grotworm Lair

 * Travel to the Grotworm Lair.
 * Investigate the Summoning portal at the end.
 * Talk with Hannibus. (Chat options: 3-1-1-1)

Dragontooth Island

 * Travel to Dragontooth Island.
 * Head south to the Mysterious entrance.
 * Fight/Tank a celestial dragon for 2 minutes.
 * Talk to Hannibus again.

The white dragon

 * Activate the Artefact in Edgeville to meet with Hannibus in the KBD Lair.
 * Talk with the King Black Dragon.
 * Enter Mysterious entrance.
 * Talk with Therragorn. (Chat options: 1-1)
 * Kill the 3 Dragon-Hunters.

Daemonheim with Kerapac

 * Kerapac will talk to you. (Chat options: 3-2-1-1-1)
 * Head into the far northern room. Kerapac will talk to you. (Chat options: 2)
 * Harvest 25 memories from the wisps and channel them into the cage.
 * Talk with Kerapac to fight the boss.

Wrapping up

 * Speak with Echo of Jas to teleport out.
 * Kerapac will talk to you. (Chat options: 4-1)
 * Decide Hannibus's fate.
 * Quest complete!