Night wish by Sydney Bristow.
Serena Sykes was still trying to figure out her place in the world when she discovered the existence of magic. Now armed with limited magical powers, she'll have to stop her newly discovered family from destroying the world.
With only 48 hours before they fill the world with monsters, Serena will have to rely on a vampire who is as much friend as foe, while trusting in the wisdom of her dementia-ridden grandmother.
No one said saving the world would be easy!
A good read.  Slow in places.  I liked Serena.  I liked the magic she did. Looking forward to next book. 4*.

Not my cup of tea, a weaker heroine who has no hope and complains about it the entire story just isn't for me.