Amy S. Foster

Not long ago, Ryn knew what her future would be - as a Citadel, it was her job to protect her version of Earth among an infinite number of other versions in the vast Multiverse at any cost....

“High emotional stakes and an intriguing premise make this first entry in Foster’s new trilogy a solid next read for those who enjoyed Pierce Brown’s Red Rising or Veronica Roth’s Divergent."" -- Library Journal An alternate reality that feels all-too-real, The Rift Uprising is the...

With comparisons to Suzanne Collins' The Hunger Games and Pierce Brown's Red Rising, the Rift Uprising trilogy is an exciting, action-packed series focused on a powerful young woman leading an improbable army against a dangerous enemy. The Rift Coda brings this fast-paced adventure to a...

To save her loved ones, unlock the mystery of who she is, and finally get revenge, a brave young woman must travel through the multiverse and between alternate realities in The Rift Frequency, the exciting second book in Amy S. Foster's The Rift Uprising Trilogy. She didn’t mean to, but...

The second title in the electrifying YA techno-thriller series by acclaimed author and songwriter, Amy S. Foster. For three years, teenage super soldier Ryn Whittaker served as a Citadel, guarding the Battle Ground Rift site – one of fourteen mysterious and unpredictable tears in the fabric of...

What’s the difference between the monsters you fight against and the monsters you fight for? What do the multiverse and teenage super soldiers have in common? Nothing. And that’s Ryn Whittaker’s problem. Ryn is a Citadel, specially chosen and trained to guard a Rift – one of fourteen...