City of Iron and Ivy

In an alternate London where botanical magic flourishes, Elswyth Elderwood is a scarred scholar among socialites. When her graceful sister Persephone is murdered, Elswyth becomes the last of her house and must abandon her studies to find a wealthy husband to save the family from financial ruin. Elswyth enters a London shaped by floromancy, where hedge witches conjure nightshade and noblewomen weave gowns from wildflowers. A serial killer known as the Reaper transforms victims into plant-human hybrids. When evidence points to the killer being a powerful nobleman, Elswyth's search for her sister's murderer merges with her hunt for a husband. Drawn to Silas Blackthorn, a bastard-born archaeologist with potentially dark secrets, Elswyth must distinguish allies from enemies and genuine affection from deception—or face her sister's fate.