"Silver Moon. Lake. Book," repeated Reve.
Three lines. Once he connected them together, they should reveal where the follower of The Prophet is, which in turn would reveal the location of The Prophet.
Reve put his brain to good use.
"The silver moon is the main theme of Narva. The royal family loves the theme of silver. This influence has affected many things in Narva. So, at least, we can deduce that the follower is still in Narva."
"Yes," agreed Marya.
"On the other hand, 'the lake' is not specific enough. It could mean anything."
Marya intervened, "We can find good results if we look at this like a coordinate where the country is revealed, then the region, then the local community."
"So 'the lake' emphasizes the 'silver moon'? Hmm… 'silver-moon-lake'?! That's it! It's Starhold."
"Starhold?"