See, throughout the game, the villain's right-hand man, Talbot, continually exhibits strange powers. He gets shot in the chest(might've even been the head, I'm not sure) and is completely fine only moments later, he appears to vanish around a very small dead end alley after being chased, and has access to a drug that later turns out to be water infected by the presence of a demon. There are also some shenanigans with Tarrot cards involved. Oh yeah, and he's also seen a flashback to 20 years ago, and looks exactly the same as he does in the present. (If memory serves. I might be wrong about that last one, actually)
So at the end of the game, it turns out the Lost City of the Month, Iram of the Pillars, was supposedly destroyed when King Solomon cast a whole bunch of imprisoned demons deep into their water supplies, as the city is made of brass and apparently brass can trap demons. The demons then proceeded to poison their water supply with their presence, turning it into a powerful hallucinogen, getting into everyone's heads driving them crazy. The Shadowy Organization that is headed up by the villain is apparently trying to release these demons.
Well, that's the story that gets hinted at anyway. What we're actually told is that the water supply just happened to get infected for no supernatural reason, and there never were any demons. Well, we see the Shadowy Organization pulling a massive brass container up from the water, but Drake stops them with absolutely no fanfare or difficulty. Then the city sinks into the ground and.....That's it. Talbot's mysterious powers are never adressed, and the presence of demons is left ambiguous. The official story is that the Shadowy Organization just wanted a massive supply of drug-water for use in Shadowy Activities, and the Mysterious Container is completely ignored. What a fucking waste.
So what was I hoping for?
I thought it would out that Talbot was in fact, a demon himself. Alive since somehow escaping Solomon's capture all those centuries ago, but totally alone and with no knowledge of where Solomon hid his demon brethren. So, over the years, he manages to form an entire organization just to find them: Convincing people to work with him based on the promise of power once the demons are released. Hell, this organization is always given a creepy, occultist vibe, so maybe they'd be happy with serving these demons, or think they can control them better the Solomon did. The specifics don't really matter to me, but there's something there. The point is that if Talbot was a demon, the plot would instantly get about a thousand times more interesting. It would explain why all the explorers that previously looked for the city turned back at the mere sight of demon imagery when the same imagery didn't disuade Drake: Maybe they saw an ACTUAL DEMON and finally realized that they were in WAY over their heads. Giving Drake a similar experience might finally deliver the wake up call that all the other characters are trying to drill into his head the entire time, but NOPE. Talbot is just another mook, and Drake gets to ride off into the sunset, having learned nothing.
What. A. Waste.