In the fog-wrapped alleys of Victorian London, Elara Thornberry keeps a quiet life. By day, she brews extraordinary teas for ordinary people — a calming chamomile for a worried mother, an Earl Grey steeped in moonlit bergamot for a woman seeking answers. By night, she reads the fortune of the city in its tea leaves. Nobody asks too many questions in Perilous Lane, and Elara prefers it that way. Then Detective Inspector Alistair Finch walks through her door with a cursed teacup and a case that defies logic. Four victims have been found across London — bodies intact, minds utterly erased. No memories, no names, no selves. The press calls it a medical mystery. Finch calls it a last resort. And Elara, against her better instincts, calls it her problem now. The trail leads into London's hidden magical underbelly — a shadow market of illegal enchantments, a killer who weaponises lullabies, and a darkness that doesn't just steal life, but existence itself. To stop it, Elara will have to use every skill she's buried since fleeing her old life, face a magic more dangerous than anything in her grandmother's grimoire, and trust a sceptical detective who doesn't believe in magic — even as it saves his life. Cosy, atmospheric, and wickedly clever, The Tea Witch of Threadneedle Street is the first book in the Threadneedle Street Mysteries — perfect for fans of T. Kingfisher, Deborah Harkness, and The Invisible Library series.