Barnhill, overlooking the sea at the top of a potholed track, was not large, with four small bedrooms above a spacious kitchen.

The village is reached up a potholed track, fringed by goats, three hours west of Accra and six degrees north of the equator.

To the classroom! Jamie hoisted himself into the van, Andrew followed, and they roared off, the others following more carefully up the potholed track.