As Hei's light feet brush over the plants, they maunder towards him like iron filings to a magnet, and hunch up on each other, clinging to his ankles...

They begin to grasp at him. Though each individual one is not strong - pluckable, like blades of grass - en masse they present more and more of a challenge and they begin to climb up his ankles and calves.

A numbing sensation overtakes Hei's toes.