In the Lion’s Den (Part 1)
Yet Friya was wrong about the Marquis. They followed Belin all around his house thanks to Spirit dimensional magic, the binocular, and even Life Vision, but he never took his communication amulet.
When finally one of his servants walked out of the house, Quylla followed him only to see one of the butlers buy the daily groceries.
Inside her luxurious guest room, Jirni used the enchanted items she wore disguised as jewelry to search for surveillance devices, finding none. Then, she checked the paintings for holes and lastly the fireplace, discovering that it was identical to those in house Ernas.
The chimney had been built so that it wouldn't carry only the smoke, but also the words of the occupants of the room thanks to its particular acoustic that amplified the echoes. It was a trick meant to lull even paranoid mages into a false sense of security since there was no spell that could detect them.