The lips upon the holes

We're not proud of this episode title, and we're not proud of the wee little clue asset below - but by gum we're proud of the episode itself.

Join Anna, Jamie and Jon as they find themselves beset by arctic wildlife, and trapped with the corpse of Amadeus Mozart in a musical mystery cave...

If you're playing along at home you might find the below useful. Or you might not! As visual assets go, they're pump.