What on earth had possessed him to ask Adam round? Guilt, more than likely, he admitted with a grimace of disgust as he started for the house. He’d always felt a bit sorry for Adam, for reasons he found hard to articulate. Maybe it was that Adam seemed to try too hard at life, but his dedication to any number of good causes never produced much visible result. And the ironic thing, Nathan thought as he held on to the doorjamb and struggled out of his wellies, was that yesterday when Adam had rung him, he’d had the distinct impression that Adam was feeling sorry for him.

Adam Lamb nursed his old Mini out the Grantchester Road, past the University Rugby Grounds, coasting downhill when he could to save petrol. Although he didn’t believe in owning automobiles, his parish work rendered some form of transport a necessity, so he salved his conscience by driving a car that passed its MOT each year only by the grace of God. His rationing of petrol had an economic as well as a moral impetus-a few carefully consolidated trips a week were all his meager budget would allow.

A gust of wind rattled the car and Adam looked back at the overtaking bank of clouds. He should have walked tonight-it was less than two miles, after all, along the river path, and they’d done it without thinking when they were students-but the threat of rain had combined with a nagging cold to dampen his enthusiasm. He felt old, suddenly, and tired.

Adam slowed almost to a walking pace as he came into the outskirts of Grantchester. As near as it was to Cambridge, he hadn’t been here in years. He’d certainly never expected Nathan to come back, at least not alone. When he’d heard through mutual friends that Nathan had inherited his parents’ house and meant to live in it, he’d felt a little frisson of unease.

The Grantchester Road became Broadway, and as Adam inched round the last curve before the High Street junction, he blinked in surprise.