Lok Trivia: Book 3 Edition. Book 2: Spirits/channel/bendingtime/LoK+Trivia+Book+... Book 1: Air/channel/bendingtime/LoK+Trivia+Book+... Book 3: Fire/channel/ben Lok Trivia: Book 3 Edition 2: Spirits/channel/bendingtime/LoK+Trivia+Book+ 1: Air/channel/bendingtime/LoK+Trivia+Book+ 3: Fire/channel/ben