A Summer's Love — Isobel Cabot

The Shoring twins, Robin and Bob, had the reputation of doing anything for a lark. In fact, the high-spirited two somewhat scandalized the sedate Jonathan Witt, who was the executor of their parents' will. Mr. Witt held out the two as an example to his own children, Cecile and Victor, of what not to do, and how not to behave. In life Old Witt, as the twins called him, had been predictable, but his death held a surprise. For in his will he had written a most unusual clause. It was in the nature of a challenge. Robin and Bob were to spend an entire summer on a sleepy island, but what the reward was to be was not disclosed. Three months at such a place was not to the twins' taste, but they never turned down a dare. They decided to arrive, however, on their own terms and made plans to parachute to their host's house. Robin fell wide of the mark, and landed uncomfortably on a rugged boulder. But this was just the first of the jolts that Seven Islands had to offer the capricious two, for standing over Robin, only minutes later, was a red headed young man Victor Witt, looking and sounding amazingly like his father.