Night of the Bonfire — Jane Blackmore

It was the prospect of daily contact with Gideon Fitzpane that made Kay Buchanan glad she had been chosen to organize the Penhydrock library. But the man Kay had loved since she was a little girl was now married and life at Penhydrock was a living hell: Gideon and his wife detested each other, their child was caught in the middle, and the household was ruled by an old woman who cared little for anyone.

Kay's love for Gideon kept her at Penhydrock. But it was a love that would be used against her, a love that would entangle her in a murderer's master plan....