Does this make sense?

[Crusader]

I'm busy reading a novel and a certain excerpt doesn't feel finished to me. I'm not sure if I'm misunderstanding something or if it's a problem with the text.

Some context. Some kids are walking through some zombie infested areas. Ash and Saint are people. Rotter refers to a zombie.

I reached behind me, grabbed a rock and threw it as hard as I could. I watched it fly through the air and hit the emerging Rotter right between the eyes. It staggered back, giving Saint just enough time to lash out with her chains, and for Ash [to] pull a vicious-looking army knife out of his boot.

Ash and Saint stood back to back for several more seconds, their eyes searching the bush.
'That was close!' Saint said, shooting me a small grateful smile.

Now, to me this doesn't make complete sense. The zombie appears, but is never killed nor is it stated that it flees. Later Ash wipes his knife so some fighting must have been done, but it's not mentioned.

[dwig]

Originally Posted by Crusader

...
Now, to me this doesn't make complete sense. The zombie appears, but is never killed nor is it stated that it flees. Later Ash wipes his knife so some fighting must have been done, but it's not mentioned.

It makes reasonable sense to me, at least the class of sense that applies to a zombie story. That is, assuming the chains that Saint "lash(ed) out with" were substantial enough to act as a weapon. It wouldn't follow that Ash would need to wipe off his knife since he seems to have left the serious work to Saint and her chains.