ys think of Cora Kimball first. Perhaps it
is because she was rather of a commanding type. She was a splendid
girl, tall and dark. Her mother was a wealthy widow, who for some
years had made her home in the quiet New England town of Chelton,
where she owned valuable property. And, while I am at it, I might
mention that Jack was Cora's only brother, the three forming the
Kimball household.

Bess and Belle Robinson were twins, the daughters of Mr. and Mrs.
Perry Robinson. Mr. Robinson was a wealthy railroad man, associated
with large metropolitan interests.

Bess, Belle and Cora had been chums since their motoring days began,
when Cora had been given a car, and, after some persuasion, Mr.
Robinson also had bought one for his daughters.

I think I have already intimated that Bess was plump and rosy--a
little too plump, she herself admitted at times. Her sister was just
the opposite--tall and willowy, so that the two formed quite a
contrast.

Marita Osborne was a newcomer in Chelton, who had soon won her way
into the hearts of the motor girls, so much so that Cora had invited
her to come to the bungalow at Crystal Bay.

Each year Cora and her chums sought some new form of Summer vacation
pleasure, and this time they had decided on the seashore, in a quiet
rather old-fashioned resort, which the girls, on a preliminary
inspection trip, had voted most charming. In fact they went into such
raptures over it that Jack and his chums had decided to go there also.
So the boys and girls would be together.

Speaking of the boys, the two who will come in for the most
consideration will be Walter Pennington and Ed Foster. Walter was
perhaps a closer chum of Jack's than was Ed, the former attending
Exmouth College with Jack, where, of late, Ed had taken a
post-graduate course. Ed was considered quite a sportsman, and was
fond of hunting and fishing.

The first book of this series, entitled "The Motor Girls," tells how
Cora became possessed of her car, the _Whirlwind_, and what happened
after she got it. In that powerful machine she and her girls chums
unraveled a mystery of the road in a manner satisfactory to themselves
and many others.

When the motor girls went on a tour, they made a strange promise--or
rather Cora did--and how she kept it you will find fully set forth in
the second volume. In the third you may read of the doings of the
girls at Lookout Beach, where came two runaways whom Cora befriended.
The runaways were