This was a really excellent book. On the Amazon scale, I'd give it four-and-a-half stars (unfortunate that Amazon doesn't permit half-star ratings to be given out)   First-person protagonist "Eff" (her first initial; her actual name is hardly ever mentioned in the book) is the eponymous Thirteenth Child, one supposedly born with cursed magic and destined to go bad according to many in her society. Her plight is made worse by the fact that she is the elder twin sister to a fourteenth child, her few minutes younger brother [ Continue reading... ]