I'm reading LOTR for the first time, and just finished the first book of TTT (Book III), and it occured to me that it just might not be so hard to find the lost seeing stones. Now as far as I understand, the Palantirs (is it a countable word?) can communicate with each other. So maybe it'd be possible to look through one (after Sauron's defeated, of course), and see where the other five are (assuming that they could find the one that Sauron got from Minas Ithil)? Or must there be someone else on the other side with the other Palantir for it to work? So that you can't just see where the others are through one if there wasn't anyone using it (as the one from Orthanc needed to be "switched on" by Pippin by holding and looking at it)?