The Last Wizard - Guardians of Ravætta, #1

What does a problem solver do when some wrong turns in his life land him at rock bottom and he needs a hard reboot? When Dean Valentine (Val) receives a sentient grimoire, he believes he has found his solution in magic. Val is ready to begin a new life on Ravætta as a wizard, but soon learns that magic comes at a price. Wizards are being killed, and it is up to him to save everyone. Unfortunately, not everyone wants magic to be saved.
As word spreads of his arrival, enemies crop up all around him: thieves, assassins, monsters, and even gods. To prove himself to be the hero that Ravætta needs, Val must master magic, uncover secrets, and defeat enemies before time runs out. It is not just his own life on the line.