A Summoner's Mishap

Cameron is a disgruntled apprentice mage to Tiege Gistell, the grand Matron mage. One day, while Tiege is away for business, Cameron sneaks into her masters quarters and spots a grimoire open on a desk in it she learns how to summon a demon. Things however things go awry and she does not summon a helpful demon servant, but rather accidentally summons a powerful incubus intent on turning her into his servant instead! Will Cameron be able to contain him? Or will he overcome her?