Affair in Provence — Marguerite Lees

There was no reason why Piers Hadwick should have rescued Andrea and her young brother from a nasty situation in the South of France, but he had done so, and Andrea, at any rate, was more than grateful.

But Piers had once told her, 'I never write off a debt. Sooner or later it has to be paid, and in full.'

How would he expect her to repay him?