Rysa Walker is an American author known for her work in science fiction, fantasy, and mysteries. Her debut novel, Timebound, was the Grand Prize winner of the 2013 Amazon Breakthrough Novel Award. She has gained acclaim for her bestselling series, The CHRONOS Files, which has sold nearly half a million copies and been translated into fourteen languages since its launch in 2013.

In addition to speculative fiction, Rysa Walker occasionally writes mysteries under the name C. Rysa Walker. She currently resides in North Carolina with her husband, two sons, and a hyperactive golden retriever. In her free time, she enjoys watching science fiction series and exploring stories about magical creatures and superheroes.