At dawn he comes.
I can't explain why I want that sentence structure other than aesthetic reasons, but if it's not correct or if it's clunky, then I'll have to just go with the standard: "He comes at dawn." Also, if it is correct, am I supposed to have a comma after "dawn"?
I may change my mind and start liking the regular way of saying it, but I figured knowing the grammatical rules and favored writing aesthetics would be of use regardless.
"At dawn look to the east."
I was kind of going for that vibe, but I suppose it doesn't work this way. Back to the drawing board. Maybe I'll get the first sentence down by the day before the end of the contest.