Introduction
News from the Stars
the Lorekeepers of the Dark Portal
A COMPLETE GUIDE TO THE COSMOS
This section of the Supplement is inserted to give a complete and general description of the D&D Cosmos that we have created as to forge a solid, coherent and useful background bunch of informations for any DM that is interested in Planar Cartography. It is reccomended to read it as to understand better the content of these pages. Moreover, we reccomend to read at least the part on other dimensions that is found either in the D&D Companion Box Set, or in the AD&D Dungeon Master's Guide, to familiarize with terms like "outer planes", "elemental planes" and "Ethereal".
Planar Cartography: from the Prime Plane to the Vortex
the Origin of the Multiverse
From Old Ones to Mortals
Multiverses
NEW
THE NIGHTMARE DIMENSION
This section describes the physical nature of the Nightmare Dimension. It presents rules for reaching the Mirror Tetraspace from the Multiverse or the Prime Plane, and describes the elemental nature of this Dimension.
Physical Changes in the Fifth Dimension
the Four Elements of Nightmare
FEATURES
This chapter is focused on some nations, cities and interesting locations in the Nightmare Dimension. If you are not interested in the nature of dimensions and problems of planar cartography, but simply want some cool places to throw your players in, this is the right place to visit!
Lemuria and the Glaurant Theocracy
the Floating City of Loceurl
the Fortress of Ye'engh
CREATURES, GODS AND SHAKERS
A Monstrous Compendium and a detailed view on the Discontiguates and Outer Beings. Find the Ultimate Foes for your players and discover the most abhorrent gods of the Cosmos!
Monstrous Compendium
the Outer Beings
A Complete Guide to Dragons
NIGHTMARES OVER MYSTARA
This part of the Supplement deals with the day-to-day relationships between Normal and Nightmare Dimensions on the Planet of Mystara. It presents many campaign and adventure ideas, suited for all levels of play, to scare your players to death without necessarily bring a neo-Cthulhu out of the sea in front of them...
the Blackflame and the Hin
Geoff's Big Book of Unspeakable Outer Lore
the Legend of Zargon
Making connections: Chamaleon Men and Nightmare
Meet the Burrowers
Mitili: A threat from the Past?
the Phantasmer: Glantri and Nightmare Magic
the Thanegioth Archipelago: Dark Worship
OPTIONAL RULES
A bunch of articles that present new rules that can be used, especially focused on the Nightmare influences on Mystara, obviously...
Insanity and the Outer Beings
the Nature of Dreams and the "Dreamworld"
Situations for "Dreamworld"