Witch Hollow and the Wrong Spell (Book 1‪)‬

That spell was wrong!
When three young witches, Electra, Cassandra, and Medea, decided to practice witchcraft, they had no idea what consequences the wrong spell could have. Ghosts that scare the townspeople, and an old witch with an eerie wail are their minor problems.
Meanwhile, sixteen-year-old Eric O’Brian is sent to live in a small town called Hollow, which seems to be stuck in the 1800s. Soon he finds out that the beautiful town full of colorful ravines, green highlands, and dense forests, is not an ordinary one: flowers that whisper, a shop that steals the time, and a hanged man coming to life on the Halloween night lead him to believe that Hollow is a mystical place inhabited by witches.
After meeting the mysterious girls and befriending them, Eric becomes a part of the world with time traveling, medieval bards, flying brooms, and paintings with parallel reality.
Then a murder happens in Hollow...