In Tove Jansson's Moomin universe, there is a fictional character known as the Groke. She has a ghostly appearance with two piercing eyes and rows of white teeth. Despite having a tail mentioned in Who Will Comfort Toffle, her tail has never been seen. The ground freezes wherever she stands, causing plants to die and leaving traces of ice and snow behind. Her touch also causes things to freeze, including a campfire when she sat on it. Although the Groke seeks friendship and warmth, she is rejected by everyone and everything, leading her to reside in a cold cavern atop the Lonely Mountains. The Groke symbolizes both the physical manifestation of loneliness and the psychological depiction of individuals who struggle with expressing love and acceptance properly, which can make them appear cold and frightening to others, ultimately perpetuating their loneliness.