This book is on sale on Amazon for $0.99 (regularly $2.99) 3/11/2021 - 4/30/2021!
Rydel Scott, a brilliant scientist working at a secret military lab, accidentally discovers time travel while working on a project designed to save wounded soldiers in the field. Rydel's dying sister, a nun, tells Rydel that she has received a message from God—save Jesus Christ from the cross. And Rydel Scott travels back in time to do just that.