[X] Inform Sid that you know the Truth behind the Invess game. -[X] Bluff, bluff like you've never bluffed before! --[X] Uh, uh, Yggdrassil is a big tree, right?! Didn't there used to be a legend about something that grew on it?! ---[X] UUUUUUUUUUH TELL SID YOU KNOW ABOUT THE APPLE! That'll make him back off for sure!
[X] There's only one way to settle this.
-[X] Bring out your deck, and challenge Sid to a duel.
--[X] If he wins, they'll agree to his terms. If he loses, he must let them go.