Enchanted Stream

[Inziladun]

Originally Posted by ecthelion

since the magic seems very strong, I wonder who enchanted it. Thranduil comes to mind, but is he that powerful?

Welcome, ecthelion. I think that's the main question here.

The more I think about this, the less likely I think it is that the stream's magic was the work of the Mirkwood Elves.
Think about the Lórien Elves: they crossed rivers with single ropes tied at either end over the water. Legolas told Haldir he had no trouble doing that. Wouldn't that have been a hallmark of the wood-elves in Mirkwood too? If they had enchanted that stream as a barrier to the entrance of the realm from the forest path (that according to Beorn was hardly used by anyone), wouldn't they have set up a way for them to cross it in the same way they did it in Lórien? As it was, all it took was a party with a small hook to grab the boat on the eastern bank and drag it to them. Every member of Thorin's group would have made it across, if not for a deer jumping out of the trees at the wrong time. Would the Elves, having taken the trouble to put a sleep-spell on that stream, really have been so careless as to have left a boat reachable by intruders that they could use to cross?