In Book 4 of the As Time Goes By mystery series – As Time Goes By: Love and Revenge – the Bartholomew & Hobbs Detective Agency gets its first case. The assignment is to follow Jenny Williamson, a young wife and mother, whose husband Harvey believes is having an illicit relationship.

Bart and Emily soon find themselves with too heavy a workload, covering the clock shop, maintaining castle Daingneach’s clock contract, and running the detective agency. They take on Isla to run the shop, and hire an extra associate investigator, ex-cop Mitch, to help with the case.

What is happening at the deserted bus company building next door to McKinley’s Autos at Dinnet, and is there any connection with the abandoned tour bus building in Bart’s village where they previously discovered the graffiti wall?

Robbie Cowan goes undercover for Operation Graffiti, leaving his life in Scotland behind.

Emily’s despair at losing Robbie turns to hatred for the girl Gina Taylor, whom she blames for him leaving her. Emily takes a break to visit her father in Nottingham, but discovers more than she expected.

Will love turn to hate . . . and ultimately revenge?