Grubnuk’s sister, Thistle, is a strikingly unique goblin with deep purple skin that glows faintly under moonlight, a stark contrast to her brother’s green hue. Slightly taller than Grubnuk, Thistle has a slender frame and sharp, gleaming violet eyes that seem to see through the darkest shadows. While Grubnuk is known for his obsession with eating coins, Thistle has a talent for collecting them. She has a keen sense for finding rare and magical currency, her small fingers always reaching for the most valuable pieces hidden deep within treasure hoards or buried beneath ancient ruins. 
Unlike her brother, Thistle is clever and diplomatic, using her knack for negotiation and charm to strike deals with merchants, adventurers, and even other creatures of the dark woods. Though she doesn’t eat the coins herself, she has a deep fascination with the mystical properties they hold and is always on the lookout for coins that carry hidden powers. With her sly smile and quick wit, Thistle often serves as the brains behind Grubnuk's schemes, offering guidance while keeping her own pockets full of shiny treasures.
Together, they make a formidable pair—Grubnuk with his appetite for coins and Thistle with her ability to find and barter them. Though they’re mischievous, their bond as siblings is strong, and they share an unspoken understanding of each other’s quirks, always working together to outwit anyone who tries to steal their precious treasure.