Could someone check the translation on the first panel?

It was basically right, but I'd be interested to learn how you got "spring" out of 間欠泉騒動.

Also, we have check_translation and partially_translated tags for that sort of situation, in case you weren't aware.

Oh sure, hiding things from a mind reader should be a piece of cake.

It's simple really. Get a idiot or a decoy (or both) who knows no important knowledge to distract while keeping the important people away.

I never said it was easy..

Or use a tin-foil hat.

Wait, is there tin-foil in gensokyo?