“Now, Then, and Everywhen” by Rysa Walker is a trade paperback book published by Amazon Publishing in 2020. It is part of the Chronos Origins Series and spans 528 pages of exciting science fiction and action adventures. The novel delves into the world of time travel, alternative history, and explores thought-provoking concepts that keep readers engaged and entertained. With a gripping plot and dynamic characters, this book is a must-read for fans of the genre.