Cold in the Earth (Unabridged‪)‬

It doesn't take Meredith Mitchell long to regret giving up her lovely Cotswold cottage in favour of living in London. In addition, the fact that her job gives a whole new meaning to the word "tedious" does little to improve her mood. What she needs is a holiday.
So, when Alan Markby's sister wants a house-sitter, Meredith jumps at the chance. Alan himself is overloaded with work following the discovery of two bodies, one of which, at least, is a murder victim. No matter what he tries, he can't seem to get a lead on either case. Perhaps a fresh objective is just what he needs.