I should draw everybody's attention to the less reliable vis sources in this post.
Thadeus has offered to collect Creo in Carlisle, and I think Cath'rinne will collect Herbam outside Edinburgh. They can do so safely, being familiar with the source. The Mentem and Corpus sources have not been collected, and you do not know how hard it will be until you try. Worth noting if you want to volunteer for a story.,