Even if our MC is officially dead, and therefore doesn't have any official backing (at least now that that Claude went full retard and just randomly trusted the words of a person he knows is a liar and malicious bitch), isn't a court magician supposed to be some kind of big shot ?
Even if he isn't high nobility or royalty, someone in the direct service of the crow based on his magic powers should have considerable power up his sleeves.
Like, be it through political or magical power, he should at have the ability to actively try to be helpful in the situation, even if he just takes them and flees to their own kingdom.