The Rift Frequency

In the second book of Amy S. Foster's YA techno-thriller series, teenage super soldier Ryn Whittaker and Ezra Massad explore the dangerous and mysterious alternate worlds created by the Battle Ground Rift. As chaos erupts within their base, Ezra is inadvertently pulled through the Rift, prompting Ryn to follow across different realities to uncover hidden secrets and fight for her future. This installment continues to combine high-stakes adventure with a captivating exploration of alternate Earths.