Diagram: Spikeroog aketon

Diagram: Spikeroog aketon is a diagram in the Witcher 3: Wild Hunt. It is used to make Spikeroog aketon. It can be pruchased from the following merchants:
 * The Armorer in Kaer Muire
 * The Armorer in Kaer Trolde keep
 * The Armorer in Midcopse
 * The Armorer in Oxenfurt
 * Fergus Graem
 * Willis
 * Yoana