The building in question belonged to the estate next to that from which the swimming contests had been conducted.

This boathouse was closed, for the owners had not yet come to Gridley for the summer.

The windows of the little green building were shuttered from the inside.

Over the water the walls came down to within six inches of the present level of water.
Keeping his eyes turned toward the black, floating object, Dick swam easily to the spot.

The black object floated under the open sidewall into the boathouse.