Earth Spells Are Easy. Grimoires of a Middle-aged Witch, #1

As a forty-three-year-old, newly divorced, single mom, I know two things for certain, starting over sucks, and magic isn't real.  At least that's what I thought. I mean, starting over really does stink, but when it comes to magic, I have to rethink everything. I've spent the last year since my ex left me going through the motions. Get up. Work. Care for a grumpy teenager. Cook dinner. Go to bed. Wash.
Rinse. Repeat. Nothing changes... Until it does. After bidding on a box of old books at an estate auction, I'm experiencing changes. And I'm not talking about menopause. My garden gnome Linda has come to life. No, really. Her name is Linda, and she never shuts up. A chonky cat with a few secrets of his own has adopted me. And a gorgeous professor of the occult tells me I'm a witch. Right now, I'm not sure who's crazier-me, Linda or the hottie professor. If this is my new reality, it's nature's cruel midlife trick.
I'm learning fast that earth spells might be easy, but they aren't cheap. All magic exacts a toll, and if I don't master the elements, the elements will be the death of me. Literally.