The successful team who co-authored Friday's Child and The Mystery of Catesby Island have written another story for older girls, this time with a Pacific Coast locale. Jane Holden, their new heroine, throws herself into her first job as country home demonstration agent for two reasons; -- first, to prove herself a capable successor to older, more experienced Miss Donaldson, her predecessor, and second, to erase memories of Bruce, who jilted her. On the defensive toward men, Jane takes a dim view of Kenneth Wheaton, the good looking music teacher. Her vocational problems center about the redoubtable Hilda Ackerman, an entrenched know-it-all who dominates one of Jane's groups. There is not enough suspense to the vocational or romantic problems to hold unflagging interest.