Another win against scenario 3, though not with a solo deck. I decided to play with two decks, on my own. It occured that this scenario gets easier with more players as only one Hero is ever imprisoned. Also the effect of cards like Caught In A Web is lessened with more players, and thus more heroes.
I played mono Lore and mono Spirit. I have two Core Sets so each deck had about 45 cards each, including 3 Gandalfs each.
The quest was definitely easier! Eleanor from the Spirit deck was imprisoned which was good for me. Threat was getting reduced here there and everywhere from all the Gandalfs and Galadhrim's Greeting. There was plenty of cross deck card play, including playing Protector Of Lorien on a Hero from each deck :-)
Another advantage of more than one deck is you get to spread the detrimental effects of the Objective cards. I took the Shadow Key first with Glorfindal who had Self Preservation and could thus heal the damage done to him every turn. Once the prisoner was rescued I had a Forest Snare to stop the Nazgul in its tracks. Later I gave the Map to Eowyn (who I never attack or defend with anyway), and the Torch was given to another Spirit hero (as Spirit had the lowest Threat at this point).
I thought I might come unstuck at one point, as though I was seeing off the Enemies fairly effeciently, more and more Locations were stacking up in the Staging area (literally about 9 at one point). But good old Northern Tracker wiped out nearly all of them in a couple of turns! Special mention must go to my three Daughters of Nimrodel who were able to merrily heal pretty much any damage that came my way. I lost Denethor though, as I took a risk with him Defending against Ungoliant's Spawn and drew a +1 Attack Shadow Card :-(
I definitely want to try more games with two decks now. It is a major headache keeping track of all the cards, but alot of fun. It will be great to see some of the Ranged attack Heroes and Allies come into their own as well.