Preview of The Philadelphia Adventure Summary:

The Philadelphia Adventure is the fifth in a series of books that feature the indomitable Vesper Holly. It is a novel of high adventure imbued with classic elements: a beautiful, fearless heroine, a loyal side-kick with comic qualities, a dastardly villain, a worthy cause that involves saving the "whole blessed United States of America," a growing sense of intrigue and suspense, and a gripping conclusion that includes a high-speed chase—on bicycles...