I agree with much of what has previously been written. If we accept that the enchantment is caused by Thranduil or his people then it's not a big leap to say that the spell begins and ends where they want it to, which would answer the thread's original question. The case for this is strong, albeit circumstantial.
The Enchanted River certainly appears to be part of Thranduil's defences much like Doriath's defences years ago. Like the Girdle it would seem the enchantment stays within bounds set by the enchanter which would explain why other streams & tributaries aren't "polluted" by the enchantment as they would be if a potion-like substance had been physically added to the water to cause the effect.
Also similar is that the effect of both the River and the Girdle's enchantments aren't necessarily harmful. If memory serves the Girdle mainly disoriented an intruder causing them to get lost but leaving them essentially unharmed once found. The River uses sleep as it's weapon but still no harm is done to the snoozer. Again this similarity with the ancient Elven realm seems to imply that it's the elves that are the source of the enchanting here and not some natural phenomenon like a magic spring or some such thing.
Also the dreams, if they are dreams, why would one dream of elves they have never seen if not prompted by the enchantment itself. I'm not convinced of the dream aspect of this however. Bombur's dreams accurately describe what was actually happening, or was about to happen, in another part of the forest. But he had never seen such events before so how could he dream it in such detail? Seems to me that these were less of a dream and more a vision (if that's even the right word) tho' I can't at the moment come up with any logical explanation why an intruder would be allowed to see his enchanters in this way.
From: northern hemisphere-ish | Registered: Jan 2003
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Also when Bilbo fell asleep when he was pushed into the Elves' circle:
quote: Dori stumbled across him by sheer luck. In the dark he fell over what he thought was a log, and he found it was the hobbit curled up fast asleep. It took a deal of shaking to wake him, and when he was awake he was not pleased at all. "I was having such a lovely dream," he grumbled, "all about having a most gorgeous dinner." "Good heavens! he has gone like Bombur," they said. "Don't tell us about dreams. Dream-dinners aren't any good, and we can't share them."
So the effects were much the same as the enchanted river.
[ 07-23-2011, 04:55 PM: Message edited by: Numenorean Sword Trainer ]
From: The Island Previously Known as Numenor | Registered: Jul 2011
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