1920s New York City Police Sergeant Paul Bruno runs afoul of a criminal organization and steps outside the law to become the masked vigilante Scarlet Wraith.
Paranormal investigator Jim Holland and psychic Mandy Hart debunk a fraudulent spirit medium in 1920s San Francisco, but discover a serious supernatural threat in his place.
A triple-homicide, a shape-shifting Chinese sorceress and her bloodthirsty minion become another case for San Francisco Chinatown private detectives Danny Long and Jean Gordon.
Captain Jack McGraw and Doc Starr run afoul of Silver Star commandos while looking for an ancient Celtic artifact. They are then put on the trail of their former comrade, Duke, whose own airship, The Percival, has gone missing.
The Daedalus crew avoids destruction at the hands of the Silver Star by pushing the new LR-3 design far above the official service ceiling, but find no safe harbor at the airfield in Rome, where fascist secret police await them.
The Daedalus flees fascist fighter planes in Rome, and Doc has to do some impromptu surgery. Their refuge in Greece is cut short by a Silver Star assault, and a motorcycle chase through the narrow Athens alleyways.
The Daedalus lands in Cairo to find that the airship Percival never arrived, and and their British field contact has a good idea where it might be: an ancient, golden city on the Nile, buried by the desert and home to unearthly horrors.