Ok this is it for the Sanctum!! It's gonna be long!!
The player an Gochu notice that their kept in a gem prison guarded and created by a gem monster with a long tail and spindly parts. Gochu thinks he can smash out of the prison and fight the gem monster..., but not without getting the guards attention as well as DODs.
https://www.youtube.com/watch?v=EHrHMT2yK7k
Suddenly, there's a whistle heard from the opposite side of where the guard would rest... and a lanky, thin-looking flower gives the goo-goo eyes to the player and Gochu. "Oh god.. why you" Gochu is disgusted at his presence. It's Lessthn, a being who was actually from the final land! He didn't think that land suited his 'needs' so he moved to the Sanctum. He's more of a ... hot.. fiery element, anyway. He rests up against the bars, and asks what's all the hubbub is about.. since he was sort of out of the loop. Most importantly, he asks who that hot.. stunning.. badass covered in gems is. Gochu tells him it's Dick of Diamonds, and Lessthn is love struck. He thinks up a plan, and sends a wink to Gochu and the player.
Lessthn struts his flower self to DODs, who notices him and is... captivated. The flower interests him- "Oh my my, what a gorgeous girl we have here!!" DODs calls out, completely unaware of what Lessthn actually is. (Oh yes. This is happening.) The final land is actually a gateway to holy characters and gods, and those born there have a sort of holy powers. Lessthn indeed has some, the power to captivate who he chooses, leaving them numb with the thought of love. And thus, the plan is underway... and he has DODs fully distracted.
While distracted, Gochu smashes through the prison. He takes on the gem guard, and defeats him with no trouble. Just in time, because the love wears off and DODs finds out his love interest is.... not to his tastes.
As DODs shouts for more guards, he is frightened to see that they've all been destroyed. By Gochu? No... someone stronger. Someone who should have taken the throne of his kind- his brother. DODs' was the cause of his disappearance, and tried to snuff him out so he could take the throne. He's returned, and not pleased with how his brother has handled things in his absence. While DODs tries to explain and offer to share the throne, the brother shakes his head and tells him it's too late. The MASSIVE crystal in the deepest part of the sanctum has been destroyed. "No problem! We can make a new one to plug it up and-" but before he can finish, he is brutally tackled off his feet. You see, with the giant cyrstal destroyed, the lava can flow again.. and warm the Sanctum up. Thus... releasing Scoria.
The Boss battle of this Land begins, and it's the player teaming up with Scoria to beat the ever-living snot out of DODs. The player is victorious, and the diamond brother caries his dismantled brother back to their side of the Sanctum. The heat and lava billow out again, too hot for the player. Scoria shows the player how to get to the next land; by setting her on a rock building up pressure and launches her to the land above.