The Familiar is a standalone historical fantasy novel by Leigh Bardugo, published in 2024, set in 17th-century Spain during the Spanish Inquisition. It follows Luzia Cotado, a scullion with hidden magical abilities, who is forced to use her 'little miracles' to navigate the dangerous world of the royal court, political intrigue, and the looming threat of the Inquisition, all while hiding her Jewish heritage. She teams up with an immortal familiar, Guillén Santángel, to survive and gain favor, blending history, fantasy, and romance.