‘I remembered a word I had heard the monks say. A word that was rich and alluring, a word describing something I knew to be wrong, but which I knew was exactly what lay in the pages before me. Alchemy.’
Diary of Elise du Bois, Paris, France, 1820

In the heart of modern Paris is an old house...

... a house that has been hidden for almost two hundred years.

The only clue to its secrets lies in a nineteenth century diary.

When research student Ellie opens the door, she will discover not just an ancient mystery, but a tale of magic, betrayal - and immortal love, spanning the centuries.