[sblock=Velmont]Deos stares at the stone with open-mouthed shock. "This puzzle makes absolutely no sense! There are no indications as to it's function, and for all I know, I could be wasting my time scribbling on this stone instead of looking for a way out." He rubs the bridge of his nose and sits for a moment with his eyes closed.
He slowly tries to talk his way through what he knows. "It appears that numbers are what I am supposed to write here, as the numbers on the sides change depending on what number I write down. One would logically assume that there is a midpoint at which the number ceases to appear on the left and begins to appear on the right. That midpoint isn't at the exact midpoint between 0 and 100. So where is it? If I were to do this carefully, and use the least number of attempts, then I would need to choose a number between the two I have now and write it down. If I keep doing that, I will narrow it down much faster than I would if I just started writing numbers down randomly. If I find the midpoint and that fails to do anything, then I'll try symbols next to see if that makes any difference. Let's see, there are 24 numbers between 25 and 49, so the first midpoint number would be 37."
Deos writes down "37" on the stone.
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