I am assuming that he has one of those little mag lights. I have a couple. They are pretty powerful and are bright for their size and much easier to carry if you are an experienced hiker although I'd think a couple of extra batteries would be de rigueur. I'm wondering about the emergency blanket. I used to have one and it was about the size of a throw, not really big, enough to wrap around your shoulders, but how much room would one have taken up in that knapsack he had with him? I can't envision the size.
Emergency blankets are generally the size of a deck of cards; they're tinfoil thingies. I believe that's what is being described, and they were available in 2001. [There are other kinds of emergency blankets, e.g. Space Blanket].
There are a couple of different models of small MagLites. Yes, they are nice and bright for their compact size. I'm thinking it doesn't matter which one, unless it's one of those teensy weensy ones you click onto a key fob, which would provide very little light. It's just curious he opted for a candle lantern instead of extra batteries, but maybe it was in the clearance bin, or something.
IMO he wasn't at all an experienced hiker, but I would guess he might have spoken to a sales person at an outdoor store who steered him towards a couple of items of safety equipment, including a light, candle lantern, the emergency blanket, the socks, maybe energy bars, a water bottle. The compass was on his watch. I guess no map. The same sales person may have recommended the trail. It might have been an out-of-town store. There may have been a map online, but no sign that Bret had one with him (the best route to the cabin has several forks, as far as I can tell).
Sales people in outdoor stores often give these kinds of suggestions on product and recommendations for trails.
I wish there were photos of the stuff.
I am pretty much thinking Bret assumed the cabin was open. A salesperson recommending it may only have visited in winter and not realized it was a seasonal cabin.
If night was coming on, Bret did the safest thing in bedding down in the outhouse (especially if he was afraid of critters, or if it was buggy, or chill had set in), which would have had little odor if it was the composting kind. It likely was rarely used in summer, anyway. We have one near here like that, and it has no aroma at all, and it's not even composting: it goes with a XCountryski cabin.
It's also possible Bret got jittery because of where he was (being a novice 'n'all), and thought the jitters would be addressed by his pills. He might have been in the habit of handling jitters that way. In the same way, Ritalin will make you jittery, but it calms down folks' ADHD: very paradoxical. He would have been better off eating those energy bars...