This here is the solution to Acid Whiplash (acid.z5), by Rybread Celsius
and Cody Sandifer.  The zcode game file can be found on ftp.gmd.de in

/if-archive/games/competition98/inform/acid.

If you haven't already done so, you should probably try

Liquid (games/competition96/liquid/liquid.z5),
Rippled Flesh (games/competition96/ripflesh/ripflesh.z5),
and Symetry (games/competition97/inform/reflect/reflect.z5)

before giving acid.z5 a shot.  Trust me on this one -- it's worth it.

Anyway, here goes:

get scroll.
read it.
w.
push button.
w.
u.
open tip.
i.
open book.
z.z.z.z.z.
punkrock.
s.
x hat.
x designs.
x crucifix.
pull thread.
in.
drop thread.
break law.
drink puddle.
z. (12 times)
w.w.w.w.n.w.n.w.
z. (15 times)
e.e.e.u.u.u.w.w.
open book.

That's it.  Don't forget to hit AMUSING for a list of pleasurable treats.