POSITIVE
1. Dance a Little Longer contains the same ambience as the first two books in the Lucinda Richards Trilogy.
NEGATIVE
Compared to the first two books, Dance a Little Longer is poorly written.
1. A lack of sense throughout. Example: "He leaves the car, drives through and closes the gate, returns to the car."
2. Strange morality. In A Place Called Sweet Shrub (Book #2 of the trilogy), Jeremiah suffers horrible racial injustice, evoking the heartfelt sympathy of readers. In Dance a Little Longer, though unspoken, Lucy unfairly blames Jeremiah for the book's tragedy.
More strange morality. If a mother spanks her child, Lucy threatens to contact the police. However, as school principal, Josh dishes out corporal punishment even a year after the infraction. Josh punches out a person without repercussions simply for making a low-ball offer.
3. Two instances of gratuitous sex, the first only 16 pages into the book. A cheap hook for readers' attention.
4. Characters seem flat. Situations seem flat. The author treats each topic superficially.
OVERALL
Jane Roberts Wood, the author, rested on her laurels. Clearly, she put less work into Dance a Little Longer than the first two books.
Here's a possible reason. In the opening of Dance a Little Longer, she thanks the National Endowment of the Arts "for its support during the writing of this book". Presumably financial support. There's less incentive to produce good writing when payment has already been received.