He growled loudly when the boy managed to get his wounded hand free. Had Alucard been at his normal limits, the appendage would've come clean off. The vampire let him go anyway, still holding on to Chase's other wrist as he quickly moved foward, allowing himself to be pulled down.

If they fell onto the floor, Alucard would have the little morsel in a nice pin and he would be able to feed.

Instinct guided his actions now. Gritting his bloodied fangs together when he felt Chase's elbow jab him somewhere in the chest -smart boy-, he pinned the young man against the floor, teeth now sinking into his intended target from the beginning-- the soft, vulnerable throat. Then he began sucking whatever blood which started to spurt out of the bite.