The document summarizes information about the Trasgo, a small elf-like creature from Spanish folklore. It describes the Trasgo's appearance and mischievous activities, such as annoying inhabitants, breaking pots, and making noises. It also discusses different names for the Trasgo in various regions of Spain and mentions it being referenced in classic Spanish literature. Finally, it provides a brief summary of the plot of the 1872 novel "The Princess and the Goblin" by George MacDonald, where goblins plot against a princess but are thwarted by a mining boy named Curdie with help from the princess's great-grandmother.