'When need somebody dead, but they’ve disappeared down a rabbithole, X-Dimensional Assassin Zai is the man for the job. Atlantis, outer space, Faerieland, the Dirigible City: wherever you hide, Zai-san will find you… once he’s finished taking photos of all the tourist spots. “The Wild Hunt” finds Mr Zai on the trail of his most dangerous quarry yet: the down-on-his-heels Norse god Odin.'
Source: Author's website (https://www.jasonfranks.com/2010/01/xda-zai-in-assassins-canon/). (Sighted: 18/11/2016).