Thank you! Heh, I was surprised to see a reply to a year-old story, but then it is coming up on Vallen Time Day.
Yep, that episode is where I got Wembley's great hearing from. Hearing the water in rocks was pretty impressive, although bone conductivity had to have helped when he pressed the side of his head to the stone. What was even more impressive was when he heard Gobo breathing down in the bottomless pit, even though he was too far away to see.
I wonder which is more sensitive, Wembley's ears or Boober's nose?