Agatha Christie meets The First Fifteen Lives of Harry August in this outstanding cross-genre locked room murder mystery.

A locked room. A brutal murder.
And a killer who can turn back time...
In the former mining town of Black Lake on the west coast of Canada, there is a story about a shipwreck. All those aboard
died, except an unnamed man who staggered ashore. His descendants have a unique ability: once in their lives - and only
once - they can unwind the events of the previous six hours.
More than two hundred years later, Ella Manning, marine biologist and part-time police constable, is attending a party at
Black Lake Manor, the cliff-top mansion of the town's divisive local billionaire. With a raging storm coming in from the
Pacific, she and several other guests find themselves trapped. And when their host is discovered brutally murdered in a
locked room, they turn to her to solve the crime.
Against the odds, Ella is sure she has identified the killer... but then time is unwound. With no memory of what she
discovered before, her investigation begins again, with very different results. Someone is willing to use their gift to protect
a killer, and everyone is a suspect...