Herbalist (Kaer Trolde)

A Herbalist in Kaer Trolde village is also gwent player. He also sells a couple crafting components, rare books and some crafting diagrams, including:
 * Manuscript page: Enhanced Northern Wind
 * Manuscript page: Enhanced Devil's Puffball
 * Manuscript page: Drowner pheromones

Associated quests

 * Collect em all!