Into the Hollow by Ethan Blake
It's the night before Halloween in the year 2020, and all Hell is breaking loose. After hearing a ghostly tale of witches, cults, and curses from his father, Jack and his horror fanatic friends venture deep into the haunted hollow in search of paranormal evidence. With high school graduation and the pressures of college looming just around the corner, the teens are determined to escape the everyday monstrosities of society and have the scariest All Hallows’ Eve of their lives. The veil is thin, the moon is full, and there’s no telling what wicked wonders await them.