Yeah, I guess...
9 days is understandable. Although, I really want to see a walkthrough, preferably even a few. :)
But 7 days?!
Computer-controlled castles were definitely taken by heroes starting from their initial castle. It's impossible to run from a captured castle to another castle within 7 days.
Moreover, the last hero had to be rescued on the 4th day. It's impossible to reach any castle in less than 4 turns.
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