Raid on Chinatown

From the introduction: Someone the players care about has been abducted by the nefarious highbinders of the Hip Sing tong and taken to the steaming, rat-infested heart of New York City’s Chinatown. Time to rescue them - before it is too late! The map shows the block between Mott & Bowery west to east and Bayard & Pell north to south, in New York City. The letter or number in each building is located at its primary entrance, but each structure has an alley exit and a connection to one adjacent structure. The walls are also flimsy! The victim could be anywhere, and will likely be in the last place they look. Keep the pressure on!