[IC] Out the door we'll dance and sing

Ernesto strikes at the plummeting tome, deflecting it from his own head; Merith sidesteps and avoids tumbling over the knee-high rail of the platform; but Po, poor Po, steps in exactly the wrong direction and puts his head in contact with the sharp hard corner of the book that Ernesto has knocked aside. It's just a glancing blow, but goodness it stings!

You hear a shrill and menacing cackle from above; looking upward, you see the librarian's spectral hand plucking another hefty volume from the shelf.

Also, you hear an answering cackle from below the platform.

The library seems worrisomely deep! The platform plummets so rapidly that your feet feel very light. It would be nice if the handrail were higher; you all want to grip it, as if it will help you remain on the catwalk. It seems like you might fly up off the structure!

Another book falls toward you, but barely outpacing the descent of the catwalk. It is easy to sidestep the hefty volume, which settles gently onto the descending floor.

From above you hear a shriek of bibliophilic discontent. To the side, a ghastly librarian seems to slide upward as you zip downward past it.

How far down is the bottom? and what happens when you reach it? are questions that might race through your heads in these seconds. It is dark down here ... Ernesto's floating light is not falling as fast as the catwalk, it is trying to keep "down" with you but you are getting to the edge of its penfossa.