I just commented on another post so I ' m going to copy and paste it here . Try The Frontier Magic Series by Patricia C Wrede . It ' s a trilogy taking place when people in the US started heading west that follows a girl called Eff who was born as the 13 th child in her family while her twin brother was born as the seventh son of a seventh son . The 13 th child is supposed to go bad and do evil while the seventh son of a seventh son is supposed to be a great natural born wizard . The first book follows Eff from childhood to older teen and the next two books have her as a young adult . It ' s not for everyone since the pacing is a little slow and it ' s not action so much as world building and adventure but I absolutely loved it . The different magic types are fascinating and I loved Eff ' s journey from someone who blamed herself for being born unlucky number 13 to someone who finds her place in the world . I highly recommend it !