Volcra are fictional creatures from the Grishaverse, a fantasy universe created by author Leigh Bardugo. They are known for their terrifying appearance, resembling large, bat-like beings with glowing eyes. Volcra are primarily found in the Shadow Fold, a dark and dangerous area filled with magical shadows. These creatures are drawn to movement and sound, making them a significant threat to anyone traveling through the Shadow Fold. Volcra are often depicted as aggressive and predatory, adding to the perilous nature of this part of the Grishaverse. Their existence highlights the dangers of the magical world in which they reside.