This is the second book in the Sign of Seven trilogy
This is the story of Layla and Fox, Fox is one of three boys who accidentally let loose a demon on his home town with a blood brother ceremony when he was only ten. The demon attacks his town, every seven years, for seven days. Fox and his blood brothers are soon approaching their 31st birthday, and the fourth occurrence of the attacks.
This time there have been 3 women drawn into town, and through research and odd happenings, they have been drawn into the fight to get rid of the demon. some are unsure if they will survive this occurrence of the Seven, and others are determined to live anyway.