With the current speed, Geoffrey didn't need too much time to clear the zombies around their car. As Theodore had said before, Geoffrey began to help Theodore from a distance by shooting his arrows.
But before that, Geoffrey gave a sign to Theodore so that he would not be surprised, and also, he did not want to thwart or interfere with Theodore's attack.
"Brother Theo! I'll start helping you now." Geoffrey started screeching to tell Theodore that he would shoot arrows to help Theodore.
Seeing that Theodore had heard his voice, Geoffrey picked up an ice magic arrow and started aiming at the zombie boss that Theodore was currently facing.
The arrow quickly shot out after Geoffrey shot it from his crossbow. When the ice magic arrow hit the boss zombie's body, it froze in place.