Résumé: Solian, the city where Ian lives with Gmor and Sera, is shaking! But it’s not some natural quaking of the earth; something is digging tunnels and burrows, creating potholes in the streets and posing a risk to the foundations of the city itself. Dragonero & co., with the help of a quirk character – an Imperial “Mapmaker”, an expert in the catalogation of the underground ways of the urban centers – will have to go in deep in the caves that spread in Solian’s underground, where a team of Dwarves, belonging to the notorious Syndicate of the Mining Dwarves, is doing its work: digging. A threat, far worse than the warmonging and unreasonable miners, is waiting for our heroes, concealed in depths never reached by men, orcs, elves... or dwarves!