The disturbance turns out to be Hookwolf versus giant leafy gorilla! Or, not exactly a gorilla - more like an enlarged version of the leafy monkeys.

There are strange vines inside and around Hookwolf's blades, and while they don't seem to be damaging the villain, they're growing fast enough for the eye to see, and hampering his blades' - and his own - movements. The monkey hits Hookwolf with two heavy fists.