chunk: When Curdie explores the goblins' domain, he is discovered by the goblins and stamps on their feet with great success; but when he tries to stamp on the Queen's feet she is uninjured due to her stone shoes. The goblins imprison Curdie, thinking he will die of starvation; but Irene's magic thread leads her to his rescue, and Curdie steals one of the goblin queen's stone shoes. Irene takes Curdie to see her great-great-grandmother and be introduced; but she is only visible to Irene. Curdie later learns that the goblins are digging a tunnel in the mines towards the king's palace, where they plan to abduct the Princess and marry her to goblin prince Harelip. Curdie warns the palace guards about this, but is imprisoned instead and contracts a fever through a wound in his leg, until Irene's great-great-grandmother heals the wound. Meanwhile, the goblins break through the palace floor and come to abduct the princess; but Curdie escapes from his prison room and stamps on the goblins' feet.