Where's Crouch?

Where's old Barty?
Where's Crouch to be found?
He was last seen
Amock, on the grounds

Where's old Barty?
Bartemius, where?
He was in need of a washing
(And so was his hair.)

Where's old Barty?
Harry'd like to know
He stunned young Krum
After that, where'd he go?

We can't find old Barty
Crouch's gone down
Got everyone looking, but
Not one sight, not one sound.

           This is an odd little poem I wrote about how Bartemius Crouch went missing in Harry Potter and the Goblet of Fire   by J.K. Rowling. Barty was a Ministry official (Ministry of Magic) that Harry found stumbling madly through the Hogwarts forest, deranged. Harry was with Viktor Krum when it happened, a Bulgarian 17 year old wizard. Harry ran to fetch Dumbledore, but when they got back, Krum was unconscious and Crouch was no where to be found. Where's old Barty?
            The first paragraph is supposed to be somewhat ironic because Crouch, in sanity, was a very strict and law-abiding wizard. The thought of him not appearing composed at anytime would seem ridiculous to those who knew his character. The second paragraph is an elaboration on the first, about how it's preposterous that Crouch would turn up disheveled--and yet he did.
            The third and fourth paragraphs contemplate where Crouch could have gone, and how. After he stunned Krum, he seemed to evaporate without any evidence of where he might have headed. Was he kidnapped? Did he flee, and if so, how did he do it quickly enough to evade detection?