Dragon and Thief (Dragonback, #1)

Jack Morgan 13 has a dragon on his back - literally. The warrior K'da species are symbiotes, can only live six hours without their humanoid host. Draycos 30s is the sole survivor of the three ships destroyed scouting for their refugees, and Jack is the only possible choice. They may be an odd couple, but together they're more than the sum of their parts. They are destined to travel far and wide, facing many perils - human, alien, and other, as they seek justice and safety - Jack for himself, and Draycos for his people.