The Winglets Quartet (the First Four Stories)

"Fiercetooth, a NightWing obsessed with what could have--and should have--been. Deathbringer, desperate to prove himself as the next great NightWing assassin. Six-Claws, a loyal SandWing, who will soon find that loyalty comes with a price. Foeslayer the NightWing, a dragon in love turned kidnapper, and Prince Arctic of the IceWings, a runaway turned captive"--