Dr stone

Two nations of the stone world

The top pick is what she looks like when she's got the wolf hood down

Taking out a batch full of mushrooms Senku placed it down in front of his makeshift shelter."Heh, it's finally starting to look like a place fit for an actual human. Okay, to be honest, I don't think I can keep hitting ignore on my exhaustion for too much longer."Falling back Senku finally hit his point. 'Damn, I had no idea it was this hard trying to keep one person alive, how does san do it? there's no time for scientific progress, what I wouldn't give for someone with brute strength and stamina to handle the grunt work, I need to find yuna...."

While walking he saw a certain familiar face, in stone form, and a hole that had been completely dug up " so she was here before, can't believe I didn't notice" he thought of the girl " so you found taiju, and I'm guessing where ever you are, you must have found yuzuriha too, atta girl yuna" he smirked, still looking at the stone frozen friend

"Hah, although I do get a little sick from looking at his stupid face, I think 3700 years may have been enough of a break. Hey big oaf."   Setting his shovel down Senku got down and began to poke Taiju's 'eyes'. "Alright, time to get on Senku's lab's first project. So tell me, meathead, what will it take for you to wake up like I did." 

'The even bigger question is what exactly was it that turned humanity to stone 3700 years ago?'

HYPOTHESIS NO.1  

Imagining a bunch of aliens Senku began a voice over.  "Dude earthlings are so lame, so let's turn them into stone it did work on those pesky swallows, PRETERATE!! Get excited."  Could aliens be the cause?

HYPOTHESIS NO.2  

Now imagining himself as a military general Senku began another voice over.  "Haha,  the petrification doom ray is finally ready! What in tarnation?! it got us as well! ' a military weapon test gone wrong?

HYPOTHESIS NO.3 

Now imagine a bunch of microorganisms Senku began his final voice over.  "Hehe, we are the petriculcus virus, only humans and swallows are vulnerable to our power. Get excited."  A new type of virus?

Senku's weird voice-over ends

  'The only thing I'm sure of is whatever caused this targeted humans and swallows specifically. It seems like a fantasy, but in reality, there's an underlying role which means I can solve it discovering these hidden roles is what science is all about.   Right now I'm staring down a new path, an uncharted branch of science. Get excited Senku' he then started pondering 'What did it? What caused me to break out of my petrified state? Was it a simple deterioration?  If that were the case the outside surface exposed to the elements would be the first to break down, but petrified people are like statues, stone all the way through, for me, it was like a shell. the outside was stone but the inside was living sells.'Frozen Senku's eyes widened finding new information by rethinking everything that happens from before. Getting up and picking up some of the stone fragments that had fallen off of him he once again began to think.

'it's the other way around, the surface was deteriorated and couldn't revert to the living cells, it became a stone husk!!'

Piecing the stone back together Senku realized what he had been missing. 

'The parts of the surface that were less petrified turned back to cells, that's why the reconstituted shell had holes in it. So I wasn't revived due to deterioration or erosion, there's some outside x-factor in play. The fragments ended up in a pile with the ones closest to my head on the bottom which means the revival started at the top!!' Looking up Senku was greeted by a bat flying, Following the line to where it could have possibly come from, Senku found a cave" there's gotta be something in there.."