Think think think! I’ll give you a clue- it’s mentioned in the Lord of The Rings;

My lips are sealed further! :3

uhhhhhh. i’ve never seen the Lord of The Rings, so i am clueless. i was going to guess “the force?” but that’s star wars, isn’t it? i haven’t seen that either.
very mysterious, i wonder what it is!

haha its ok, just try to figure it out :3

ah, and when i meant mentioned in the lord of the rings, i meant the first book. sorry for the vagueness

Hmm.. I havn’t read any of the books, but I’ll still try to figure this out. Thanks for entering!
LoA

The bit about sand trickling makes me think of time, and rereading the Ficlet, it could make sense…time doesn’t really make mountains erode and such, but that stuff happens over a period of time, so it could fit. Huh. In any case, I really liked this. Great clues. I liked that you didn’t do a captial-letters message, like most people.

My guess is time. It seems too obvious, though.
LoA

hmmm… I’d guess water actually. great riddle btw :-)