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It's great that I started playing as Red! :)
ProspectorRT suggests: Flight is in a scroll at coordinates 78, 65, 0, Dimension Door is in one scroll and 6 Pandora's Boxes (all in the Dungeon), and the Wizard's Hat is at coordinates 0, 7, 1. There are no Air Magic tomes on the map at all.
And what about cryptography? The author scared us with encrypted texts – how much do we need to understand their meaning? Maybe there's important information there?
I didn't see the Flight spell, thanks, so it's obtained with Angel Wings. Although the author shouldn't have done it that way; it would have been better to give the hero the scroll in the dungeon, which would have supported the logic of the recent events. Otherwise, you don't have to kill 3 orange enemies, take the Castle, and win in a week.
Also, from what hasn't been found:
1. Where do you get 7000 Devils to exchange for Seer's Huts?
2. Where do you get 9 Lucky Clovers? Or did the author want us to cheat and give 7, not 8, Clovers for 1 Guardian, using a bug?
3. What's the point of the Grail here? You can dig it up with Angel Wings, but it's almost useless now.