"Superman may be known for his Fortress of Solitude, located in the vast arctic wastes, but Doc Savage introduced it a full 19 years before the Man of Steel.
In this adventure a mad super villain discovers Doc's fortress, along with the bronze man's collection of weapons too terrible to be used. Havoc, of course, ensues.
The story follows the typical Lester Dent formula. Pulp fiction may be formulaic but that's part of it's charm, it's what makes it fun.
This is not great literature nor does it pretend to be. Doc Savage is fun, pure and simple. Read it for that reason alone and I guarantee you'll enjoy it."