Dany's already told Mordred that Kebechet is here, and the two of them worked extensively/closely together while they were kidnapped. Mordred is very vocal. Seeing as this is a plot that heavily involves Mordred in terms of her investment, I honestly doubt it... and this is something you should take up with Mordred's player. I'm the one who approached the mods to see if this plot would be doable, but it is by no means JUST mine. I don't call all the shots, it's a team effort. Hope that helps! :)