Voices of Dragons, book 1
Carrie Vaughn2009

In a version of the modern-day world in which humans and dragons share an uneasy coexistence, an adventuresome teen named Kay accidentally befriends the dragon Artegal. Can Kay and Artegal stop the looming war between their species?

Carrie Vaughn’s young adult debut is a timely story of dragons and cell phones, conspiracy and war, love and sex, and a friendship that crosses a seemingly unbridgeable divide.