All 3 Volumes of Robben versus Chesterton: Iridescent Brooch Book Locations

Robben versus Chesterton: Iridescent Brooch only has 3 volumes and it can easily be found in the open world of Fontaine without any pre-requisite quests to complete. After collecting all 3 volumes, you will get a hidden achievement ‘Robben versus Chesterton.’

All 3 Robben versus Chesterton: Iridescent Brooch Locations in Genshin Impact

The map above shows the location of all 3 volumes of Robben versus Chesterton: Iridescent Brooch in the open world. All of the books are on the surface of Fontaine (although one is in the underground area of Court of Fontaine) so you don’t have to complete any quests beforehand and go straight to the books.

Robben versus Chesterton: Iridescent Brooch (I)

➥ In case you didn’t reach the underground area yet: Teleport to the Court of Fontaine southeast waypoint and you will see a huge spinning orb at the center plaza. Then, walk north until you see Boucicaut NPC (General Goods store). In front of him will be a slope that leads downward and you will see the huge metal door. Enter the door and jump to the bottom to reach the sewer of Fontaine (Fleuve Cendre).

➥ Now from the teleport waypoint in Fleuve Cendre, walk a little bit to the west until you see Vitruvia, the Legal Adviser. The first volume of Robben versus Chesterton: Iridescent Brooch is just behind her inside a box.

Robben versus Chesterton: Iridescent Brooch (II & III)

➥ Teleport to the Court of Fontaine southwest waypoint (near the Reputation NPC) and head east towards Hubel, a newsstand store. Buy the Robben versus Chesterton: Iridescent Brooch (II) and (III) from him for 3000 Mora each. There are also other books that he sells.