Following the map or the directions to the lost mine brings the characters to Wave Echo Cave. That lost underground complex is overrun with undead and strange monsters. The Spider and his loyal followers are exploring the mines and searching for the legendary Forge of Spells. The heroes have the opportunity to avenge Gundren Rockseeker and provide for the prosperity and security of Phandalin by clearing the rich mine of threats, including monsters and the Spider’s troublemaking.