Treachery of Mars

The Lethal Lady

Intrigue in the Cabinet

The Agra Ray

The Ivy of Death

Trouble on Saturn's Third Moon

Solo Flight to Jupiter

Cosmic Dedris Waring

The Planos Epidemic

Tunnel of Escape: Tunnel of Death

The Perilous Sleep

A Vacation at Lake Azure

Theft of the Zeta Ray

Blackmail on Saturn

The Man in the Radurium Glove

Under the Red Lake of Jupiter

The Counterfeit Commander

Mysterious Mission to Canali

The Major's Dilemma

Isolation in Space

The Tourist Trap

Dangerous Intrigue

The Secret Injection

The Treacherous Technicians

Beyond the Rim of Space

Race Against Death

The Lost City of the Carnacans

The Deadly Weapon

The Legend of Wild Man's Ridge

Way Station to the Stars

The Hidden Reflector

The Dangerous Discovery

Spaceship on the Edge of Forever

The Underwater Hideout

A Big Wheel Named Ferris

The Vindictive Brother

Photograph of a Traitor

The Couragous Traitor

The Theft of the Scrambler

Prometheus Bound for Destruction

Immediate Disaster

Lunatics from the Future

The Floating Image in Space

Secret Peril

The Parasite Disc

The Secret of Terra

Jungle of No Return

Prison of Deadly Gas

The Sacrifice

Flight of the Galaxy

Fair Exchange

The Counterfeit Puzzle