The release date for the English version of 'Thirteenth Child' by
Patricia C. Wrede is Apr 2009. If you enjoy this novel, it is available for buy as a paperback from Barnes & Noble or Indigo, as an ebook on the Amazon Kindle store, or as an audiobook on Audible.
It was Eff's thirteenth kid born. The seventh son of a seventh son is Lan, her twin brother. This implies that she is expected to bring only negative things to her family and her area, whereas he is expected to have incredible skill. Unfazed, her family relocates to the frontier, where her father will work as a magic professor at a school that is located dangerously near to the magical barrier between humans from wild animals.