Interrupted Kiss - Richard Marsh

Clare awakens in the middle of the night with no idea why. Her husband is not in his bed and as she goes in search of him she runs into her cousin Elsie who's heard a terrified shout from Rupert. When Clare returns her husband is burning papers in the grate. Next morning they discover that Uncle John a very shady and disagreeable usurer has been murdered!! Who is the culprit and will the earlier interrupted kiss ever be completed? - Summary by Celine Major