Dany could hear the singing of the red priests as they lit their night fires…
“May the Lord of Light shower you with blessings” … the magister said.
“The Lord of Light would hold our city walls against a million Dothraki, or so the red priests promise…”
[T]he guests drifted among [the ivy leaves] … among them … a red priest even fatter than Illyrio…
Not one, but four mentions of (what we will later know as) R’hllorism in this chapter, and I never pickedup on it on the first reading, rather experiencing R’hllorism as a novelty introduced with Melisandre in A Clash of Kings. I’ll be on the lookout for evidence of how sincere, or not, Illyrio’s religion is (though we already know that he’d rather trust bribes than faith to handle the Dothraki).