Necromancer vs Zombies

Careon, an apprentice necromancer, while at the same time living his life as a nobleman's son, found his estate under attack from unknown creatures. He thought that undeads, that were being controlled by the enemy of his master were the cause of all this trouble, but soon found himself wrong as he tried to survive this apocalypse.

Will he be able to survive? While at the same time hiding the fact that he's a necromancer? Or would he save the world from the creatures by fighting them using his own creatures?