Although this is an Appendix N adventure (of course!), you can bring your elves, dwarves, and halflings along so they can suffer a horrible yet imaginative death at the hands of the various monsters and traps that populate The Vertical Halls. There’s never enough demihuman fodder!
But wait, ’cause there’s more. Somewhere in the adventure there’s a prop for a crucial puzzle; when you see it, you’ll know what we’re talking about. Once you know, get back here, and try to find the hidden instructions to make the most out of that prop…
…and this is only the beginning…
