Trustee from the Toolroom by Nevil Shute
Keith Stewart is a hard working, good man who loves job. Having given up advancement as an engineer, he lives quietly in London creating miniature models and writing for a mechanic magazine. When his sister and brother-in-law decide to immigrate to Vancouver, using their own sailing boat, they ask Keith and his wife to look after their daughter, Janice, until they arrive. As the laws about taking money out of Britain mean they would have to leave most of their money and jewelry behind, they ask Keith to help them hid a jewelry box on the boat.
When disaster strikes and the little boat goes down just off of the islands of Tahiti, Keith realizes the box he helped to hid must contain all of their life savings. Never having left England before, but wanting to do his best for Janice, Keith sets out on a journey to Tahiti. Not knowing how he is going to get there or how he will pay his way, Keith finds help in unexpected places.
This charming novel highlights the honesty and integrity of ordinary people and how even small kindnesses can have effects that pay you back tenfold.