The Sister – Louise Jensen

How well do you really know your best friend?

Grace thought she knew everything about her best friend Charlie. But when Charlie dies, Grace discovers secrets that unravel her world. Inviting Anna — Charlie's childhood friend — into her life for comfort, what begins as solace soon spirals into obsession, manipulation, and danger. Louise Jensen delivers a gripping psychological thriller about trust, betrayal, and the terrifying cost of uncovering the truth.

⭐ Goodreads: 3.9/5 from 30,000+ ratings — "Twisty, addictive, and impossible to put down."

Popular with readers who love best-friend secrets, unreliable narrators, and slow-burn paranoia. Perfect for fans of The Couple Next Door (Shari Lapena), The Girl on the Train (Paula Hawkins), and Behind Closed Doors (B.A. Paris).

Pair with Jensen's The Gift and The Surrogate for a curated Louise Jensen Thriller Set.

A paperback (2016) in Very Good condition.