My own little theory on the entire series

[Kedjane]

This theory simply is not probable.
I also remember him "forgetting to put on his jacket". I'm not sure what that's supposed to mean. We, the player, did forget to put on the jacket (we only picked up flashlights and all, we never put on the jacket) which probably is what they are referring to, but what this means for Philip I don't know. He must have had come back for it. On concept art he has it on when opening the hatch.

- Self preservation < curiousity. He couldn't just climb out of that hole, going in was the only way out.

- Gameplay mechanic.

- The reason he lives is because he is lucky. But he is no action hero. He doesn't kill any of the Tuurngait, he takes blood from the dead, he saws off several hands, tears off a head and kills all other living people down there. That's not what a hero does. He is not a hero in a moral sense, even if he survives getting chased by a giant worm etc.

- The e-mail to letter part is tricky. My guess has always been that Howard wrote a note and the Tuurngait helped him by sending it to Philip, since they knew Philip was going to help them remain hidden. But it's also possible that Howie used a computer and mailed another Archaic member, but since there is no computer where he's at I'm guessing the first theory is more likely.