Zerglings knock down zealot, Cold Symmetry

Kehdana's telepathic voice was steady in the midst of battle. Focus, zealot. We are
outnumbered.

The warning came too late for Zeranek. Two zerglings sprang through the opening left
by the hydralisk, knocking the soldier to the ground. His psychic cry was a growl of rage and
pain; losing your feet among these beasts meant death. Kehdana wheeled in a dark blur of
motion—the shadowy dance of the Nerazim—and her stroke cut through both the zerglings
and Zeranek. His cry went silent.

Cold Symmetry, pg 4