"Up by the Riffles, of course," the "Riffles" being a place in the Still
river where the boys frequently congregated. Near the Riffles, which were
a series of shallow places in the stream, was the swimming hole and a
little further up was a good place to fish.

"I'll meet you later," Bart replied.

"What's the matter?" asked Ned, for Bart was usually the first one to
join in sport of this kind.

"Got a little business to transact. You fellows go ahead, and I'll come
pretty soon."

Ned had to be content with this. A little later, with Frank and Fenn, he
went to the swimming hole. Bart remained about the school until he saw
Sandy start off, then he followed a short distance behind, heading for
the dock, where the four chums kept a boat they owned.

"Hello, Sandy!" exclaimed Bart, as he saw the boy on the dock when he
arrived. Bart spoke as though Sandy's presence was accidental, and he did
that for the benefit of any of the members of the Upside Down Club who
might be in the vicinity.

"Going out rowing?" asked Sandy, and he winked at Bart.

"Yes," was the answer, as Bart comprehended what Sandy meant. "Want to
go 'long?"

Sandy nodded, and, with his help, Bart got the boat from the house and