DragonKnights (Protectors of the Realm) by Timothy C. Socha
Approx. 81,630 words.
Published on February 15, 2012.
It’s a quiet night for Sir Reginwald and his faithful dragon Simsamoniousallocutionist,
until an old shaman appears, bearing a vision of an Evil Lord astride a dragon, accompanied by three other dragon riders.The Patriarch of the Realm commissions his Dragonknight to recruit the other dragon riders rumored to be in the area,because the only way to defeat dragon riders is with other Dragon Riders.