Codex of lost knowledge
Codex of lost knowledge is a members item, with a high alchemy value of 750,000 coins. Codex of lost knowledge doesn't come from monsters, shops or a recipe; it comes from Zamorak, Lord of Chaos.
“A codex containing teachings that help improve combat stances.”
MembersTradeable (not for Ironmen)High alch 750,000 gp
Updated . Sources from the RuneScape Wiki's drop, shop and recipe data (CC BY-NC-SA 3.0), checked 2026-10-09. Item sprite © Jagex.
Ironman verdict
4 recipes use Codex of lost knowledge, including Greater Death's Swiftness ability codex, Greater Death's Swiftness ability codex (untradeable) and Greater Sunshine ability codex. Codex of lost knowledge is members-only. It is tradeable on normal accounts, but an Ironman cannot use the Grand Exchange or trade for it, so the sources on this page are the whole list. High Alchemy turns one into 750,000 coins.
At a glance
- Members
- Yes
- Tradeable
- Yes, but not for Ironmen
- High alch
- 750,000 coins
- Monster drops
- None
- Shops
- None
- Recipes
- None
- Used in
- 4 recipes
Other sources
Minigames, reward chests, clues, skilling and other non-combat sources.
What you make with Codex of lost knowledge
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