Are you looking for the Serpent Houses in Phantom Blade Zero? It’s imperative that you visit these locations while exploring, as doing so allows you to progress to the late-game stages of the campaign. We’ve got all the details for you in this article, but be ready for a few minor spoilers in the sections below. Pangzhen: Green Serpent House The Green Serpent House is practically unmissable, since you head there while tackling main quest objectives in Pangzhen.