School of the Viper

One of the southernmost offshoots of the witcher caste, it was probably the most alien and secretive. The Vipers managed to collect an incredible collection of books and scrolls on the Wild Hunt, leading some of its members to speculate whether their school was founded for the very purpose of solving the riddle of the spectral riders. As a result, all Vipers were hugely knowledgeable on the Wild Hunt.