Here are the locations of all 12 Glyphs required to open the Secret Isu Door in Assassin’s Creed Shadows. This guide shows every glyph, map coordinates, and how to solve the final puzzle. AC Shadows, Assassin’s Creed Shadows, AC Shadows glyphs, AC Shadows Isu glyphs, AC Shadows Isu door, AC Shadows secret door, AC Shadows glyph locations, AC Shadows Isu puzzle, Secret Isu Chamber AC Shadows, AC Shadows guide, Overhyped Gamer