Dragon God - The First Dragon Rider, #1

The new world is calling... Neill Torvald is desperate to prove himself-his father's warlord kingdom depends on him. When a vicious attack on the way to the Draconis Order monastery nearly kills him, it becomes clear that grave trials await him on this path. Jodreth, the wise monk who saves his life, advises caution upon entering the sacred halls. His mission is to learn arcane magic from the monks that will help to cement his father's power, but Neill will need more than magical arts alone to navigate the challenges before him.
Among the monks' students, Neill meets the lovely and mysterious Char, who senses evil deep within the ranks of the Draconis Order's members. She takes him to a dragon she has raised, Paxala, and the three of them become fast friends. Neill soon grows in strength as he and his fellow students gain ancient knowledge, and his closeness to Char blossoms into something more. But when Neill 's brothers grow impatient and attack the monastery in a bid to seize power, he will have to decide where his loyalties lie: with his warlord father's domain, or the new friends he has made in the wider world.