I found one here:
http://www.textfiles.com/apple/WALKTHROUGHS/ys.solve
It's on Apple website, though.
Anyway, I'm having a problem with a boss on The Tower level 7, the one which throws 3 green boomerang-like objects at me. It is too fast for me, Arick died before even hurt half of this boss' HP. I have tried reducing the cycles in DOSBox setting, and/or used Turbo (a slow-down utility), but to no avail. Any suggestions?