Great things can come from the friendship between an archaeologist and an illustrator, comic book author, and educator. One of them is Lignite (Windows), a comic book that explains what life was like for the miners who lived in isolated barracks in the mountains. The archaeologist is Laia Gallego, who was excavating in Coll de Pradell (Berguedà), where in the 20th century there were two coal minesIt's a wooded area where the miners themselves built shacks to sleep and rest when they weren't working in the mine or separating and cleaning the coal. The illustrator is Emma Casadevall, who became captivated as Gallego told her about everything they were discovering.