midnight
`` I know something questionable is going on here , but what is it ? '' There was no answer to the question . The tide was now booming on the beach and a fresher breeze was springing up , the wind outside having veered until it blew directly into the cove . The girl waited for the return of the `` Sister Sue '' until long after midnight , then went to bed . The sky had become overcast and a spattering of raindrops smote her in the face . The prospect was for a drizzly night . When the camp awakened next morning the sloop was at her anchorage .