Vigor, John

A reference for sailors and powerboaters, with alphabetical entries for a wide variety of information, including rules of thumb for changing a boat's name, towing the safest way, burial at sea, preventing wood rot, anchoring rights, and more.

While camping on Crab Island in the British Virgin Islands, twelve-year-old Sally and her two younger brothers rescue an injured dolphin and become involved in a dangerous adventure with mysterious strangers.