Just leave the note there for now. Go back to Ars Magicana and talk to Kistandalis (save before you do), and reload until he sells you a telekinesis spellbook. Use the telekinesis spell to see if you can pick up the manuscript that Cybu drops. As far as I recall it should be picked up with a single click unless it dropped in a bad (ie unreachable) place. If this doesn't work, then you should probably just leave it.
