The answer is SUNLIGHT Steam Community. The Undermount: The answer is DARKNESS Steam Community.
K - A - I - R - N
The puzzle ties into the chest’s contents: inside, you’ll find , a skill tome (often Lore or Arcane Knowledge related), or occasionally a unique accessory that boosts intelligence or lore-related skill checks. The word “LORE” is a meta-hint—knowledge unlocks the chest.
A "Wordlock" is a type of combination lock that uses rotating discs, each displaying letters, to spell out a hidden word. In CoC2 , this mechanic is used to gate powerful end-game or mid-game loot behind a riddle.
The following table contains the most common wordlock chests encountered during main and side quests in CoC2: Guide :: Chests - Steam Community