Thicker Than Water is a compelling murder mystery set in northern Scotland.
Callum Anderson and Jenny Mackay are spending Hogmanay at Sarclet Castle in Caithness when they are asked to investigate the brutal murder of a young woman at nearby Sarclet Broch in 1943, a woman whose ghost is believed to haunt the castle.
What seems the coldest of cold cases is not the first murder of a young woman at the broch: there was another nearly two thousand years earlier. Nor is it the last. On the …