Just keep climbing!

You lunge onwards and tear out of the girls grasp, scrambling on up the shelves, your dick bobbing around wildly.

"Hey!" cries the girl, angry and disappointed, but you ignore her and keep climbing. Your opponent is Miss Parker, not her. You hear the hatch she popped out of slam shut, and footsteps running away.

Reaching the top, you haul yourself up over the railings and stand, panting for breath on the balcony. Like the rest of the library, it's lined with bookshelves, groaning under the weight of volumes. There's a desk here, lit by an old oil lamp and piled with papers and musty tomes. A book lined passageway leads away into the gloom, and that's the way Miss Parker went.

She can't have got far, but you'll surely lose her if you don't make a move.. on the other hand, maybe there's some clue about the library in the papers on the desk?