Sky, did you only use the Russian Wikipedia to find the clues? Because Gumer, Crabby, and Arandor don't have direct articles on the cities they mentioned in the Russian Wikipedia...
https://prnt.sc/vlg78n
https://prnt.sc/vlg7lf
Excellent... He ended up on his own quest through Redford XD
Good move, I should have done the same with the Iranian-Byzantine wars)
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I don't have much time today, so I don't know if I'll be able to post here again during the day or not.
There's nothing new in the newspaper, so I might spend some time looking for clues tonight if it's still worthwhile.