The Lost Hex is a location that appears in the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics. It is a small planetoid that orbits the stratosphere of Sonic's World and is home to the Zeti, a race of creatures that includes the villainous Deadly Six, the guardians on the Lost Hex.
Conquered by Eggman
Dr. Eggman apparently became aware of the Lost Hex at some point during the Shattered World Crisis. He soon arrived on the continent and set up a base. From there, Eggman continued to oversee his plans for the shattered world below, completely unaware that his robot lackey Orbot was being controlled by an unknown entity.
Sigma apparently observed Eggman's actions on the Lost Hex for some time before making his way to Sonic's World, and was confident that Eggman's harsh treatment of the Deadly Six would make things easy for him. Having possessed Orbot, he destroyed the Cacophonic Conch and thus freed the Deadly Six from Eggman's control. Eggman was thus forced to create a new body for Sigma, who proceeded to abduct Dr. Albert W. Wily from Earth int he year 20XX to help Eggman with the other projects Sigma had in mind. These included modifying Eggman's Badnik production facilities to produce Mechaniloids, building the armor to empower and enslave the Deadly Six, and constructing the Unity Engines and Master Engine. After announcing his intentions, Sigma was betrayed by the Zeti, but employed the armor to force them in subservience. Eggman and Wily, seeking a more subtle means of getting out from under Sigma's thumb, suggested that he have his new minions capture Sonic the Hedgehog and Mega Man from their respective worlds and have them turned into additional minions.
Eggman and Wily soon renewed their former alliance, and in preparing their nemeses for conversion into Roboticized Masters added secondary coding so that, after planting Unity Engines in Mobotropolis and Mega City according to Sigma's orders, they would attack each other on sight. This would restore the pair of them to normal, with the doctors also adding coding to inform the heroes that Sigma was responsible for their corruption. Sonic Man and M'egga Man were soon dispatched, and the doctors and Sigma watched as they engaged the Light Robot Masters, Freedom Fighters, several Wily Robot Masters, Knuckles the Echidna, Quake Woman, Gemerl, and Break Man. Despite the array of heroes, the Roboticized Masters accomplished their mission, and the Unity Engines fused the planets into one Unified World. This began feeding their power into the Master Engine which in turn empowered Sigma, something that had Wily worried. When Sonic Man and M'egga Man began fighting, Sigma realized that he had been tricked, and sent several of the Deadly Six to pursue the fleeing doctors. The heroes were soon cured and joined by their former opponents as well as the Maverick Hunters and Team Sticks, who had arrived on the Unified World in search of Sigma.
Eggman and Wily escaped from the Lost Hex to the Sky Patrol with the unexpected aid of Xander Payne, who arrived via a Genesis Portal he had recently gained the ability to generate. Sigma, having completed the construction of an army of Mechaniloids, began resurrecting his fallen Mavericks as well. After reviving Chill Penguin, he was approached by Zavok with news of the Sky Patrol's approach, and realized that the doctors must have informed the heroes of his plans. Unworried, he sent the Zeti and Mechaniloids to engage them in the air while he continued recreating his army. A massive battle soon erupted in the Lost Hex's airspace, with the heroes destroying the Mechaniloid army. However, shortly after Sticks the Badger disappeared through a Genesis Portal that opened unexpectedly, the Deadly Six employed their power to control machinery against the heroes. The Freedom Fighters thus found themselves on the receiving end of an attack by the Robot Masters and Maverick Hunters, who were unable to stop themselves from fighting. Fortunately, Eggman and Wily were able to employ their new Egg-Wily Uppity Robot Scrambler Cannon to stun them and destroy the Deadly Six's armor, and the villains were thrown in the Sky Patrol brig. However, Sigma then entered his new Sigma-2 body, a massive form that erupted from the Lost Hex with his Maverick army in tow.
The weary heroes engaged Sigma's newest army, but there too worn down to stop the Mavericks. Sigma then turned his attention to harvesting power from other worlds, producing more Unity Engines and opening Genesis Portals to allow his Mavericks to carry them to other worlds. A handful of Mavericks were left behind to finish the heroes off, but fortunately Sticks returned with heroes from the world of Street Fighter. With those Mavericks defeated, Sally Acorn-inspired by Sticks' accomplishment-directed the heroes to split into smaller teams for deployment to other worlds. Their mission: to stop the Mavericks from planting their engines and recruit any allies willing and able to join the battle. At a suggestion by Eggman, a small party remained behind on the Sky Patrol to guard the Chaos Emeralds aboard and await the arrival of Metal Sonic with the seventh Emerald in case the power of Super Sonic was needed. As the heroes departed, Eggman and Wily set out on their real plan-again with Xander's unexpected assistance-and made their way to the surface of the Lost Hex in order to steal the Master Engine's power for themselves.
Super Sonic and Super Mega Man later faced Sigma in a climactic final battle for the fate of the Multiverse. During this, Eggman and Wily succeeded in cutting Sigma off from the power of the Master Engine, allowing the heroes to destroy him. As a result of this conflict and Xander Payne's actions, Sigma's trip through time was halted and Eggman's invasion of the Lost Hex was undone. This paradox also saved reality from being shredded by Sigma's overuse of the Genesis Portals. Due to retaining some memories of the erased events, Eggman decided to delay taking over the planetoid.
Sonic Lost World
At some point in the not-to-distant future, Dr. Eggman revisited his plot for the Lost Hex with Orbot and Cubot. Upon invading the planetoid, he forced the Deadly Six into labor with the Cacophonic Conch. Under Zavok's leadership, the group traveled to the surface below and captured many Mobini for Dr. Eggman's experiments before returning home.
- This incarnation of the Lost Hex has been referred to multiple times by various characters as simply "Lost Hex," without the "The" prefix.
- Sonic the Hedgehog #270, "Champions Part Three: Raising the Stakes"
- Sonic the Hedgehog #272, "Ray of Hope"
- Sonic Universe #75, "Fury"
- Sonic Universe #76, "Worlds Unite! Part One: Across Time and Space"
- Mega Man: Worlds Unite Battles #1, "Worlds Unite Battles: Sonic Man vs The Robot Masters"
- Sonic Boom #8, "Worlds Unite Part Two: Broken Heroes"
- Sonic the Hedgehog #273, "Worlds Unite Part Three: Clash of the Corrupted"
- Mega Man #50, "Worlds Unite Part Four: Death and Destruction"
- Sonic Universe #77, "Worlds Unite! Part Five: Everybody in the Same Boat"
- Sonic Boom #9, "Worlds Unite! Part Six: Fire in the Sky"
- Sonic the Hedgehog: Worlds Unite Battles #1, "Knuckles vs. Break Man"
- Sonic the Hedgehog #274, "Worlds Unite! Part Seven: Gears and Wills"
- Mega Man #51, "Worlds Unite! Part Eight: Holes in Reality"
- Mega Man #52, "Worlds Unite Part Twelve: Last Rights"
- Sonic the Hedgehog Halloween Comic Fest 2013, "Lost World"