Vaughn Heppner

The Sovereign Hierarchy of Leviathan leaves nothing to chance. Their strategists are the greatest in the galaxy, utilizing the tiniest details. Before unleashing the perfect invasion, they send Senior Dax to Earth.

In the center of the galaxy, a bitterly vengeful woman discovers the secret of the Plutonians. She is going to awaken them so the extraterrestrials can attack humanity with the deadliest ships in existence....

Star Watch stands guard over the Commonwealth, having defeated New Men, massed Swarm fleets and android attackers. The victories have cost lost ships, slain crews, and smashed star systems....

In the fourth book of the Extinction Wars series, Abaddon commands a Karg-Jelk Super Fleet bent on annihilating humanity. He's the galaxy's most ruthless strategist wielding superior technology....

Androids used to mingle among us, pretending to be human. Then an alien puppet-master altered their programming. Unknown to us, androids began leaving human society, burning their clothes and peeling off their skin to reveal the chrome-colored bodies underneath....

Through desperate tactics and by deliberately keeping a low profile, we survived the machine assaults longer than any human or cybership thought possible. But now our luck has deserted us. The main A.I. brain-core has just given human extinction top priority....

The brutal war of extinction enters a horrifying new round as the cyborgs arrive from the Neptune System, in this, the third book of the series....

The strategists of Leviathan are cunning and devious. They also fear Captain Maddox because of his unusual luck, his ability to turn sure odds into a disaster for them. Before Leviathan begins its invasion of the Commonwealth, they want Maddox neutralized....

Where are the women? We want women! Jake Bayard led tormented Neanderthals in a successful slave revolt on the planet Garm. But when the Corporation owners fled, they took all the women with them. The Neanderthals are blaming Bayard for their lack of mates, and every day that passes is making...

A nuclear attack in the Persian Gulf wrongly implicates Jake Bayard. Everyone seems to be hunting for him. Bayard flees to Garm, an ice-age world full of sabertooths, dire wolves, mammoths, and Neanderthals. Unfortunately, Institute Homo habilises are also there: extraterrestrial, crafty, small...

Across the lonely depths of space from their spiral arm, Leviathan has begun infiltrating agents into Star Watch as a prelude to invasion. One team has cloned a kidnapped Captain Maddox, intending for the clone to take his place on Victory....

Task Force 3 is Star Watch’s elite deployment unit against any surprise threats to the Commonwealth. A mysterious enemy appears 40.7 light years from Earth. Task Force 3 deploys but fails to defend a populated planet against a massive alien Annihilator....

To Jake Bayard's amazement, he meets a Homo habilis: a five-foot, hundred-pound, hairy hominid that was supposed to have gone extinct 1.65 million years ago. Philip is no moronic precursor to man, but a member of the elite extraterrestrial Institute, needing help to leave Earth. The problem is...

Earth becomes too hot for Jake Bayard. Too many shape-shifting aliens and people, including those on his own side, are trying to capture him in order to use his star-traveling abilities for their own greedy ends. Bayard flees to Kaldar, a world devastated by atomic war and lousy with mutated...

Captain Maddox is marooned on a harsh alien planet 6000 light years from Earth. He struggles alone, desperate to survive, knowing that failure will forever cost him his wife and daughter....

Alvor the Sleek—a Krekelen shape-shifter—hates Jake Bayard because the Galactic Marine slew the others of his plotting brood. Bayard wants to wring Alvor’s neck because the alien tricked him into teleporting to deadly Canopus instead of Saddoth to help his friend. Bayard’s teleportation...

This may be Victory’s eeriest voyage yet as the starship plunges into a bizarre nebula of weird compacted gases. They’re hunting for Valerie Noonan, last seen at the destroyed Adok homeworld searching for survivors....

You ever have one of those days? U.S. Marine Sergeant Jake Bayard did when he has to cancel a hot date to board a transport plane to the South Pole, which is hijacked by aliens with hostile intent to Earth. Bayard escapes into tunnels deep under the ice and stumbles upon advanced technology that...

At Omicron 9, Professor Ludendorff unearthed artifacts of the fabled Old Ones. During a meeting in a subterranean chamber, a portal appeared and aliens attacked, perhaps to kidnap the professor or grab the artifacts. Maddox’s new intuitive sense gave him just enough warning....

The most decorated soldier of the Old Federation boarded a sleeper ship with his wife. He awoke a thousand years later, the Federation gone and Earth a radioactive mess. Director G.T. Titus inserted an obedience chip into his brain and sent him on a secret mission 800 light-years away. On a...