A constant companion, a useful pet, a magical creature, Familiars are the summoned pets of wizards. They are usually as intelligent as an average animal and follow your every command, but what if something goes wrong? Magic is chaotic, anything could happen. And something did. Liam Lunargem, a training elven apprentice, finds his familiar, Umbra, extremely abnormal after a magical accident, in more ways than one. What happens if your cat is as good or better at magic than you? Or, from his perspective, his human is worse?

One of the tags for this is dungeons and dragons it's not completely based on it, but it just might help you get a feel for the setting and world in this book