My simple guide for this.
Chapter 1: Killing Hans
Requirement: Lvl-10 combat.
Hans is located in lumby castle. He is lvl 3. Kill him and return. reward: black 2h.
Chapter 2: Here's Jonny
Requirement: Lvl-18 combat.
jonny the beard is located varrok "Blue moon in" reward is some runes and fire staff.
Chapter 3: Arboreal Assassin
Requirement: Lvl-20 combat.
kill forresters in seers. reward: some logs, noted.
Chapter 4: Castle Crushers
Requirement: Lvl-35 combat, ability to traverse wilderness.
go lvl 13 wilderness and kill dark warriors (5 of them)
reward, arrows and bow
Chapter 5: Chronicles of Radick
Requirement: Lvl-40 combat.
Kill colonel radick in yannille. also 11 soldiers.
reward: robe of zamorak
Chapter 6: Who Necromances the Necromancers?
Requirement: Ability to defeat lvl-24 and lvl-34 monsters.
kill 2 necromancer and 16 zombies
they are located south of ardougne, east of clock tower
robe of zamorak
Chapter 7: Arabian Fights
Requirement: Ability to fight lvl-18 and lvl-32 monsters.
in al kharid kill warriors x6 and shanty pass guards and bring red card from there
reward: combatr exp
Chapter 8: Bandit Stamp
Requirement: Ability to defeat lvl-29 and lvl-39 monsters, and traverse wilderness.
go to bandit camp and kill monsters there, also speak with merchant
reward: combat exp
Chapter 9: Just Deserts
Requirement: Ability to defeat lvl- 31, lvl-45, and lvl-70 monsters.
kill desert wolf , camel and bedabin camp guard
reward: some food.
Chapter 10: Rage of Darquarius
Requirement: Ability to defeat lvl-51 and lvl-76 monsters.
go to traverly dungeon and kill jailer, lord darquarius get dusty key from explorer with jail keys.
Chapter 11: Game Ogre
Requirement: Ability to defeat lvl-58 and lvl-78 monsters.
go to south of yanille
Chapter 12: Dragon on the Ending
Requirement: Ability to defeat high level dragons and demons.
traverly dungeon: kill 2 blue dragon, 2 demons and 2 black dragons
reward: rune item
Chapter 13: Dragon on the Ending Pt. 2
Requirement: Ability to defeat high level dragons, and traverse wilderness.
Kill KBD 5 times, u cant use prayers here.
rune item
Chapter 14: Guardians of the Fallacy
Requirement: Ability to defeat four aggressive monsters in the level 251-255 range, one after the other. (Billy edit: they drain your prayer) Level 32 thieving.
head to wizards tower, u need lockpick here! u have to kill 4 high lvl monsters, u can use prayers here
zammy axe and combat exp