Under the Andes by Rex Stout is a captivating adventure story that takes readers on a journey deep beneath the surface of the earth. The novel follows the exploits of two brothers, Decoud and Nunez, who find themselves trapped in a hidden civilization inhabited by a race of advanced humans.

Stout's vivid descriptions of the underground world and its inhabitants are both fascinating and immersive, drawing readers into a world that is both fantastical and eerily believable. The characters are well-developed and complex, with each facing their own personal challenges and moral dilemmas as they navigate the strange and dangerous world they find themselves in.

The plot moves at a brisk pace, with plenty of twists and turns to keep readers on the edge of their seats. Stout's writing is eloquent and evocative, painting a vivid picture of the underground world and its inhabitants. Overall, Under the Andes is a thrilling and imaginative tale that will appeal to fans of adventure and science fiction alike.

Book Description:
Under the Andes was written by Rex Stout years before his creation of the immensely popular Nero Wolfe series of novels, and while perhaps his future writing style is still blossoming, certainly his knack for weaving a fantastic tale of mystery and adventure will have most readers anxious for the next phase of adventure at every turn.

The story finds two brothers and a pretty female companion on a journey which eventually takes them to a series of underground caves under the Andes of South America, where they encounter a lost tribe of Incas who have apparently survived hundreds of years oblivious of the outside world. The apparent 'king' of the tribe has become infatuated with the fair-skinned female intruder of the group and, well, suffice it to say there's a lot of action, attempted escapes, heroism, and peculiar interactions between all, reminiscent of H. Rider Haggard with a touch of Edgar Rice Burroughs.