If you find nothing is happening when you type, click on the Z-Machine window.
And if you feel so compelled as to try to save or restore a saved game, it probably won't work, because modern browsers don't like to let Java applets access files on the local system.
Maybe if I'm feeling particularly 1337, I'll see if I can fix that.
Actually fixed a bug and made some internal improvements since posting this about an hour ago. Casting ambiguously (i.e., >cast light) shouldn't be as painful as it used to be, although I still need to include every spell name in the check for this, for some reason. Perhaps noun isn't the token it's looking for. Anyway, that works, and there are some fixes you can't see (unless you use the debug commands, which happen to be enabled in this build), like renaming a couple of variables to more descriptive names, and getting rid of a device that turned out to not actually be necessary with Inform, although I still use a null device to make my spell system work. ;-)
The scribbled note still doesn't mean much, because I haven't implemented other manipulations that were originally going to be part of this file, like elemental summoning, bolts, channeling, and other things. Perhaps I'll see about expanding the area to include more features, if I decide to keep this spell system.
January 12 - added some new rooms. As of 1:03 AM CST, the empty pedestal in the last possible room is intentionally empty. I wanted to add another manipulation like channeling, but those aren't yet very portable. I may go ahead and add another book on to the pedestal sometime soon.