Following last Saturday's debacle I exchanged a couple of emails with Brambler who a) confirmed that I was in the right part of the forest, and, b) reminded me that there was a hint provided with the puzzle, something that inexpicably I'd managed to completely forget! How absentminded/stupid (delete as appropriate) can you be!
Mind you, my sub-conscious hadn't forgotten about the hint - where did I put my rucksack down last week? Within easy touching distance of the hiding place!! How did I miss it? Well, even with the (generous) hint it's a cunning hide and still took me 3 or 4 minutes to spot.
After all the shenanigans to get to this point the remainder, thankfully, proved straightforward. This continues to be a great series, even if I am making rather heavy going of it at times. On to 'Amphora'! (I did remember to collect the clues.)