The Invisible Foe is a book adapted from the play of the same name by Walter Hackett, originally published in 1920. The story follows the lives of two young lovers, Jack and Joan, who are engaged to be married. However, their happiness is threatened by the sudden appearance of a mysterious and invisible foe who seems determined to destroy their relationship.As the invisible foe begins to wreak havoc on their lives, Jack and Joan must work together to uncover the identity of their enemy and put a stop to their destructive plans. Along the way, they encounter a cast of colorful characters, including a wise old detective and a scheming villain, who add to the intrigue and suspense of the story.Set against the backdrop of early 20th century England, The Invisible Foe is a thrilling tale of love, betrayal, and mystery. With its engaging plot and well-drawn characters, it is sure to captivate readers of all ages and leave them eagerly turning the pages to discover the identity of the elusive foe.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.