Come a raven, my king, from the citadel.This message was sent to me by Samuel tarley. he was my brother at the night's watch, a man I trust as much as anyone in this world. he's discovered proof that dragon stone sits on a mountain of dragon glass. I received this.A few days ago from dragon stone.It was sent to me by tyrion lannister. he is now hand of the queen to daenerys targaryen. she intends to take the iron throne from cersei lannister. she has a powerful army at the back and if this message is to be believed.Three dragons! lord tyriion has invited me to dragon stop to meet with daenerys.And I'm going to accept we need this dragon glass, my lord, we know that dragon glass can destroy both white walkers and their army. we need to mine it and turn it into weapons, but more importantly, we need allies.The night king's army grows larger by the day we can't defeat them on our own we don't have the numbers daenerys has her own army and she has dragon fire! I need to try and persuade her to fight with us.Sir, Davos and I will ride for white harbor tomorrow.Then sail for dragons stone! have you forgotten what happened to our grandfather? the mad king invited him to king's landing and roasted him alive! I know that she is here to reclaim the iron throne and the seven kingdoms! the north is one of those seven kingdoms! this isn't an invitation, it's a trap! it could be, but I don't believe tyrion would do that you know him! he's a good man! your Grace! with respect, I must agree with lady sansa I remember the mad king all too well a targaryen cannot be trusted, nor can a lannister.We called your brother king and then he rode south and lost his kingdom.Winter is here, your grace.We need the king in the north, in the north.