Deep in the heart of Khazad-dûm, changes are being made. Caverns are being restored, bridges are being rebuilt, and there’s even plans for a new shopping centre… But when a huge hoard of objects is discovered in a hidden chamber, Ash and Tilly are called in to investigate! And helping them in their quest is Dr Adrián Maldonado - archaeologist, author, and expert on hoards. Together, they discuss the history and definition of hoards, and the fact that Tilly’s constant Discworld references finally seem to be having their desired effect…