One Realm Beyond (Realm Walkers, Bk 1)

In book one of bestselling author Donita K. Paul's new fantasy series, a young boy named Cantor has the gift to jump between the realms that make up his world and is determined to become one of the realm walkers destined to uphold the ways of the creator. But when his first assignment encounters a rocky start (and a hard-to-work-with dragon), he must summon every skill he's developed to battle the secrets that threaten his guild and his people's very way of life.