Winter of Horror Series - Mystery! The Resurrection of The Monster Woo (冬の怪奇シリーズ ・ 神秘! 怪獣ウーの復活 - Fuyu no Kaiki Shirizu - Shinpi! Kaijū Ū no Fukkatsu Winter of Horror Series - Mystery! The Resurrection of The Monster Woo ?) is the 42nd episode of Ultraman Ace. It is the Second of the 3 Episode Story Arc, Winter of Horror Series (冬の怪奇シリーズ, Fuyu no Kaiki Shirizu Winter of Horror Series?) Ultraman Ace Version.