Felicity is back in the Old World a primitive, mystical land but why has Al has been dragged here? And where is Reuben? In this sequel to 'Toxics', Felicity and Al find themselves in the Meshi territories, land of the fabled sea folk. Joined by Jez, all three hunt for Reuben but something is coming that will draw them together in a new fight to save the Old World and no one can help apart from Aurelius, a barnacled old Thessalon, who may have a plan."