Mystery of the "thing"

Ladies and gentlemen, might I borrow your attention for a moment to describe to you a most curious mystery of nature to which I am at present referring as the "thing?"
It was almost a fortnight ago when I found myself the fortunate handler of "the thing." It came into my possession as an accidental byproduct of carrying an armload of firewood into the house from the out-of-doors. If memory serves me, which it sometimes does and sometimes does not, I discovered this "thing" somewhat nestled between layers of stacked firewood. (I keep my reserve of stacks of firewood beneath a somewhat sizable hickory, which may be neither here nor there in context of this story, but is the truth nonetheless.)
Allow me to describe this delightful "thing" to you briefly. It is roughly the size of a large pecan (with hull), and not round but not flat. The color is a tan brown, and the texture is like a sort of paper, but not just one layer of paper but rather several. There has grown upon the outside of the "thing" a bit of moss, and there is a dried blade of grass plastered to one side of it. For all practical purposes, it can be described as tasteless and virtually odorless, although when wet with saliva it emits a faint fruity aroma.
Being a rather curious woman, I carefully retrieved the "thing" from its previous location and brought it into the house for observation. I placed the "thing" in a half pint sized glass jar and loosely put a lid on top. At random since that day I have gone to jar, opened the lid and stood for observation. Until today, the "thing" remained still and unchanged.
This evening, however, upon returning home from a long day away, I was drawn by a pull of nature to the jar on the countertop which held the "thing." I removed the lid and listened carefully, for a thought I heard a rustling within. I removed the "thing" from the jar hesitantly and cautiously placed it on the counter. Not only was it rustling quite audibly, but the "thing" was moving its case around from within. I watched with wonder as this "thing" rustled and bumped atop the counter.
I suppose something will emerge very soon. I wish to give this creature adequate oxygen and space to manuver once it does emerge, (for what I know not, as I feel quite certain I have forced its hatching by bringing it into the warm house as so many Americans are forcing paperwhites this holiday season.) I transferred the "thing" into my 4 gallon ball jar and loosely placed the lid over top. I will watch and wait for the mystery to reveal itself.
Godspeed, "thing."