Sparo Rising: Blade of Wexbury. Sparo Rising, #1

Sparo Rising is a spinoff series from the Techromancy Scrolls.  Each book features a standalone story of a different side character from the Techromancy Scrolls that readers wished to hear more about.  This first book centers around Lady Verna of Wexbury, and her rise to Knighthood. Almost three thousand years after an extinction level event on Earth, mankind seeks to regain its former glory, in a new world where magic and technology collide.
Verna had always dreamed of becoming a knight and protector ever since she was a child and a stranger gave his life to save her family from marauders. She and her best friend, Celeste, share the same dream and aspire to become Squires so that their dreams could be realized.  After being passed by in the first choosing when she had been fifteen, both she and Celeste are chosen by knights the following year. The threat of an army of marauders calling themselves the Horde, under a man called the Reaper.
casts a shadow upon their training over the years, until things come to a head and Wexbury answers the call for help from the realm of York... the Reaper is at the gates.