Nicholas and Mike (Mikayla) are in a race against time to find the “key” to Marie Currie‘s polonium before a madman gets his hands on it. These books are very serious yet funny at times, with Nicholas and Mike‘s banter back and forth. There is also an attraction between the two of them that makes you hope that they finally become a couple, not just partners. #SeriesLove2023 @Andrew65 @TheSpineView