As Johnathan Gabriel searched through the dumpster, he found himself a Cardboard Tube, which Tycho Brahe decided to insult. After one swift hit to the stomach, it was declared Civilization by Tycho himself. He even managed to defeat a green demon with it.
Soon, it ended up in the hands of the Cardboard Tube Samurai as he wandered the land, fighting and defeating petty thieves sent by The Shadow Lord. This is assuming that the Cardboard Tube Samurai is, in fact, another character, and not a projection of Gabe's persona into another place.
The Tube is Civilization.
According to the Cardboard Tube Samurai, the tube has several other names.
- The Waking-Dragon: Coiled, as spring dawns.
- Hawk's-Harvest: Seizing prey in the tall Summer grass.
- Autumn-Razor: The patient hunter.
- The Famine-Of-Winter: Kills the babe at its mother's empty breast.
This is a full list of appearances outside the Cardboard Tube Samurai comics.