Introductory module for the Hollow World setting. First Adventure in the Blood Brethren Trilogy. Into the Depths! Under the ruins of Barleycorn Monastery, a tunnel leads one thousand miles downward. Through it, a rescue mission into the Broken Lands turns much stranger. Much more Serious. For the trail leads to the Hollow World. Launch your D&D game players into fabulous lost-worlds adventure across the Hollow World! Travel the Azcan Empire. Explore the secret labyrinth of the Great Pyramid in Chitlacan. Fly to the core of the world and enter the Smoking Mirror, before the monstrous Prince Kano enacts his devastating scheme - a scheme called: NIGHTWAIL! Nightwail is the first adventure for the D&D Hollow World Campaign Set. (The Hollow World boxed set is required to play.) This 64-page adventure fits easily into your existing campaign, either as a stand-alone adventure or as part of the continent-spanning Blood Brethren trilogy. These three linked modules can be played in any order - but the adventure starts here! Easily adaptable to the AD&D game! TSR 9303