Magic is real and those that can harness it are rare.
Felicia is one of the few. Her mother was the only other she knew, but her mother died before she could pass on her knowledge in full. Felicia's mother did warn her of dark magic and an encounter with it left Felicia afraid to expose her abilities at all.
When Will showed up wanting guidance in his new power, she questioned her ability to teach. Will has amazing power, but he cannot fully access it. That would be bad enough, but a dark presence in the town has targeted them and they only have until Midsummer to thwart this entity's plans for them.
If they cannot grow their magic in time, Will and Felicia's futures are dire and the fates of their loved ones will follow.