Oasis

In the audiobook, "Tri-Lakes," Chris Anderson, his brother Aaron, and their friends anticipate a carefree summer filled with adventure before heading into adulthood. However, their retreat to a secluded area by three small lakes soon reveals itself to be a site steeped in darkness, haunted by a centuries-old Viking bloodfeud. As they confront the malevolent forces at play, they discover that hatred fuels this evil, and only through sacrifice can it be overcome.