From publisher blurb: Welcome to the city of Northgate and the Explorers Citadel! This is where you, as an explorer will rest, recuperate, and gear up for your forays Into The Chasm. The city is where you can find things, maybe even a place to live, train, and work on your gear before you your trips down below. This is part of the One Page Wonder campaign series: Into The Chasm. It provides setting information so your explorers can improve their chances when they venture into the Great Chasm. This set comes with the setting rules, a map of the city, and poster.