Thea Stilton and the great tulip heist / Thea Stilton ; [illustrations by Barbara Pellizzari (drawings) and Daniele Verzini (color) ; translated by Emily Clement].
Attending an art class in the Netherlands, Violet journeys through the flower gardens, windmills and canals of Holland to investigate the untimely disappearance of her friend's father, a renowned botanist whose absence is linked to a rare black tulip.