XII.
A STRANGE SAIL.
Except for a few stray guests, islanders or from the inland country, to whom Mrs. Todd offered the hospitalities of a single meal, we were quite by ourselves all summer; and when there were signs of invasion, late in July, and a certain Mrs. Fosdick appeared like a strange sail on the far horizon, I suffered much from apprehension. I had been living in the quaint little house with as much comfort and unconsciousness as if it were a larger body, or a double shell, in whose simple convolutions Mrs. Todd and I had secreted ourselves, until some wandering hermit crab of a visitor marked the little spare room for her own. Perhaps now and then a castaway on a lonely desert island dreads the thought of being rescued. I heard of Mrs. Fosdick for the first time with a selfish sense of objection; but after all, I was still vacation-tenant of the school-
