Mary Christine Speranza 
Echoes In The Dark [EPUB ebook] 

In Echoes in the Dark, shadows hold secrets, and ancient evils lurk just beneath the surface. When Jo and her brother Christian accidentally awaken a monstrous force during what should have been a peaceful camping trip, they are thrust into a deadly chase through the woods. As they fight to survive, Jo must uncover her hidden lineage and confront the grief and guilt that have haunted her for years. With the help of unlikely allies, she will face a creature older and darker than any nightmare, in a battle where the echoes of the past could mean the difference between life and death.