Lovers' lake

CHRISSIE HAD PLANS. . . .

For some time now, popular and pretty Chrissie had been dying to get Adam Norwood, brightest of the Norwood triplets, to notice her. And now she had the perfect opportunity. She had persuaded her parents to allow her to invite him, his sister and her boyfriend, for a romantic weekend in the Sierras, where Chrissie's family had a vacation house. It was the perfect setting: beautiful scenery, a lake to go canoeing, all the tennis he wanted, a barn dance in the little village below - surely he would fall under her spell. It was certainly worth a try. . . . [text from book jacket]