The Mirror That Remembered Her. The Museum of Impossible Things, #1

Beneath one of London's most famous museums lies a place the public was never meant to discover. Hidden below its grand halls is a secret archive of impossible objects: artifacts that should not exist, evidence from crimes no ordinary court could ever understand. A mirror that reflects another version of the present. A clock that moves against tomorrow. A painting of a city history tried to forget.
When skeptical restoration expert Nadia Rahman is hired to repair a damaged antique mirror, she expects fragile glass, old silvering, and a difficult conservation job. Instead, the mirror shows her something impossible, something personal, disturbing, and far too real to dismiss. Drawn into a hidden world of altered histories, missing people, forbidden evidence, and a masked thief known only as The Collector, Nadia must decide what to trust: science, memory, the museum's secrets, or the reflection staring back at her from a reality that should no longer exist.
Elegant, atmospheric, and full of mystery, The Mirror That Remembered Her is the first book in The Museum of Impossible Things, an urban fantasy adventure series where every object has a secret, every exhibit is evidence, and reality itself may be the greatest crime scene of all.