u/Leaping_Tiger14

During the Conquest, Aegon and Visenya went on a war crime rampage in Dorne following the death of Rhaenys and Meraxes.

But a messenger bearing a message from the Yellow Toad effectively stopped the siblings (and their desires for Dornish conquest) in their tracks.

Now, what exactly do you think was in that letter?

A threat of Faceless men?

Implication that Rhaenys was, in fact, alive and a hostage?

Something to do with the Ice and Fire prophecy?

Still one of the more baffling mysteries in this universe.