Dangerous Days by Mary Roberts Rinehart is a gripping mystery novel that keeps readers on the edge of their seats from start to finish. The story follows the protagonist as she navigates a series of dangerous situations, including murder, deception, and betrayal.

Rinehart's writing is compelling and immersive, drawing readers into the world of the story and keeping them hooked until the very end. The characters are well-developed and engaging, making it easy to become emotionally invested in their fates.

The plot is fast-paced and full of twists and turns that keep the reader guessing at every turn. Rinehart's ability to create tension and suspense is truly impressive, making Dangerous Days a page-turner that is difficult to put down.

Overall, Dangerous Days is a thrilling read that will appeal to fans of mystery and suspense. Mary Roberts Rinehart's storytelling is top-notch, making this book a must-read for anyone looking for an exciting and engaging mystery novel.

Book Description:
Dangerous Days opens in a still neutral America, though within a year the country will have joined the European alliance against the Central Powers in the first world war. Clayton Spencer, a successful industrialist and owner of a munitions plant, finds himself facing several problems: not only anarchism and German sabotage, but also the prospect of a deteriorating marriage, and of a son who all too often shares his mother's frivolous and essentially self-concerned point of view. How far will America's entry into the war change such views? What will it mean for Spencer, for his family, and for his business?