(Tin House Books) “Costalegre,” Courtney Maum’s slim new novel (smartly designed with a colorful textured jacket), will whisk you away to the beaches along the western coastline of the Mexico. Narrated by Lara — the 15-year-old daughter of Leonora Calaway, an heiress intent on creating an artist’s haven as World War II bears down — a young girl, left mainly to her own devices, desperate for affection, and finding none coming from her mother, who turns instead to the artists who have commandeered her mother’ … (read more)