The Inescapable Puzzle: Clue 6

Congratulations, you made it this far! Clue 6 is the point where things start to get really, really confusing.

A cryptic message is scrawled on the wall:

They say I'm the king of the jungle, but I'm really just a prisoner.

A faint smell of coconut wafts through the air...

A faint humming noise echoes through the vents...

A faint glow emanates from the ventilation shaft above...

What could it mean?

Hyperlinks:

Next Clue, because things are about to get really bad.

Previous Clue, if you're feeling nostalgic.