What are your Terraria Headcanons?

[The Ghost of Dr Bones]

My headcanon is that the lizaharads and the dryads trapped the moon lord with the help of the Martians with giant Tesla pillars dedicated to each of the four great alien nations. Over time the player destroy the defence mechanisms left until after the final mechanism Golem is destroyed and the cultists who are sent to repair the pillars but are interrupted by the player and the stealth mechanism on the pillars fails and after the player destroys them the moon lord escapes. The mechanic Martians come to repair them but their technology is stolen by the player.