I guess everyone got an automatic win against Zhou Tian since he's dead and can't fight anymore.

Yeah, I mostly wrote it for myself so I could have some closure. I'm glad I wasn't the author too, lol.

You know, I don't mind this ending...I think? It was rushed and I have a lot of questions, but at least the last line made it clear that the Immortal Devouring Beast was defeated and the world won't end. Just a few more paragraphs would have been nice though. Something like: "Startled by those words, Lin Jin woke up and saw Xiao Hou standing above the dead Immortal Devouring Beast. Xiao Hou was now at rank 9! Lin Jin's thinking had been right! Lin Jin and Tianzun grabbed the stone fragment from the dead beast. There was just 1 fragment left. Before, Lin Jin hadn't known where in his body the fragment could be, but in the 7 years, he had discovered its location. Before removing it, however, Lin Jin quickly redid his blood contract with Xiao Huo since he needed it to control the other beasts he had blood contracts with. This method of recontracting a beast was the last bit of knowledge he would get from the Museum. Slowly, Lin Jin placed his hand over his heart and pushed gently. His hand disappeared into his chest. Lin Jin pulled out the stone that had been in his heart. The previous owner of Lin Jin's body had died because over exhaustion had strained his heart. So it only made sense that the Heaven Foundation Stone fragment was in his heart. Lin Jin and Tianzun went over to the Heaven Foundation Stone and the fragments clicked into place. It was completely mended. Tianzun closed his eyes and did a divination for ten hours. Tianzun opened his eyes with a grin on his face. 'We did it!' he told Lin Jin. Tianzun decided to stay on the Immortal Mountain and build a new furnace, but Lin Jin was ready to go back to Maple City. With Xiao Hou being the only rank 9 beast, Lin Jin no longer needed to worry about any enemies he might have in the future. Perhaps he would go track down the Visitors to the Museum of Deadly Beasts. He could finally help them further evolve their beasts. And he'd like to see how far he could evolve Goldy without the Museum's help. The end!"

It says that he wasn't able to learn from the Museum, but he asked Shu Xiaolou about it and they explained how.

the 1 in 100 is likely an aproximation ... since there were 81 lots to choose originally, there are 79 left ... meaning that there are 79 possible tiles that could be identified (the other 85000 were excluded by the first two lots)

There are 81 lots, not 81 tiles. Since there are a total of 85320 possible ways to choose 3 distinct lots without replacement from a set of 81 lots, there must be that many tiles. (note, the number 85320 comes from the formula for a combination, n!/[k!(n-k)!], where n=81 and k=3)

Maim means to permanently injure/damage someone ... like giving them a limp or blinding them.

Back in chapter 128 he collected some blood from Ye Yuzhou's flood dragon and said that it would be good for making a 'flood dragon blood pill.' Maybe he'll use that? From what I remember, he hasn't actually created the pill yet, though, so maybe not.