Publisher Description: Fall of the Underground City is the second adventure in the Big Trouble Mammoth Park trilogy. In the heroes' search for answers, they find themselves at the moles' underground city. But before they can learn too much, the city is attacked by rats! The heroes must find their way back to the surface, cross a marsh and create some poetry to find the rats' lair. Once there, they will meet a creature more dangerous than they ever imagined. Can the heroes defeat this monster and learn more of the mysterious power's secrets? Fall of the Underground City is 5 encounters; it includes 2 new monsters and 9 new maps. Select encounters also have double sized maps. Also includes printer friendly version. Requires: Big Trouble Settings Guide and Rules