Belladonna by Adalyn Grace

In this gothic fantasy novel, a young woman named Signa Farrow, who has been inexplicably immune to death since childhood, finds herself entangled in a mysterious and dangerous world after being sent to live with her last remaining relatives at the eerie Thorn Grove estate. As she navigates the secrets and supernatural elements surrounding her new home, Signa discovers her unique connection to Death itself, which becomes both a curse and a powerful tool. With the help of unexpected allies, she must unravel the dark mysteries threatening her family and confront her own destiny, ultimately exploring themes of love, mortality, and self-discovery.