Just finished reading the PDF. You sick, sick fuck.
There's an unfinished either/or construction at the bottom of p. 18: "Flipping a coin in will either increase one random ability score (roll d6 to determine which)." The next sentence suggests you should nuke "either."
In general, the text is inconsistent in describing how to remove curse x, y, or z, or how long the effect lasts. Not a problem for most DMs.
The "will suffer a -1/5% penalty" construction is a bit awkward. Instead, how about "will suffer a 5% penalty (-1 on d20)" ?
When you refer to a location key or a chapter title, it couldn't hurt to include a page number reference in brackets.
Some online commenter suggested adding contrast to the shrine map's negative space. I filled the negative space quickly in Photoshop (magic wand tool at 90% tolerance selects grid but not walls) and the legibility gain is HUGE. I can email you a layered PSD file if you like.
That's all that stood out.
Kudos, James, freaky module. :)
"If the character touching the gem survives alignment shock, the gem will fly up and embed itself in the forehead of the victim."
- Jaquays, Dark Tower, (p.7).