Help on a quest please

[Shoovers]

Im stuck on the creatures of fenkenstrain and im up to the part where i need to find his head, i just cant find it.
can anyone help ?
+rep if you can

[Matt-]

its in the biscuit tin in the loft..

[Dynamical]

http://www.tip.it/runescape/index.php?rs2quest_id=86

Quest guide, just look at the part you want.