Hey, need help finding a book! It's a murder mystery set in the Victorian era, and the detective wears a memorable hat... I think it's called a deerstalker?? He's addicted to some drug, too, maybe opium? The writing was super detailed and the cases were always so cleverly put together. …

hey guys, i need help finding this book. it's a mystery thriller, follows a detective trying to solve a series of cryptic messages left at crime scenes. There's a lighthouse involved and I'm pretty sure the author's last name starts with a 'G'. Any bibliophiles out there who can crack …