Mystery with a Sci-Fi Twist

The premise is intriguing, a blend of Golden Age mystery with a wibbly-wobbly, timey-wimey twist. The first person narration lets the reader experience the events as if they are the ones in the story. The cover is simple with a geometric pattern echoing the Art Deco design of the 1930's. I'm interested to read more about how the story unfolds, and the overall construct of this story.