Montreal
By reading Yauna's mind, even just on the surface level, she would likely detect the faint presence of a devilish being. Upon realising the metaphorical jig was going up like a balloon-covered house, Yauna dropped the illusion and began casting a spell immediately. This spell, if it worked, would begin draining both the moisture and life from Blue's body. If Blue responded by countering the spell, Yauna would react with a counterspell of her own.
Until Yauna dropped the spell, Shana's miming and mouthing would be ineffective due to her temporary case of invisibility.
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Mathan Daer
Dala would be required to pay in the modern, local currency rather than Earth money but, if she somehow managed to get some, she would be given a room.