As the first monster noticed them and attacked, neither needed to say anything. Both of them knew what to do since this wasn't their first hunting trip like this.
The creature was a strange large ugly beetle which had some kind of corrosive saliva dripping from its mandibles. It was at least a rotten, which meant Sera was the one who killed it.
Since she was the one in need of more essence, Bran only had to kill the tainted so they wouldn't annoy her while she exterminated the rest.
A small group of tainted was nearby and they immediately bounded at Bran. Sera was already gone killing every creature she saw. It usually only took one glaive swing for them to fall down dead.
Funnily enough Bran didn't even need to do that much. The six tainted ran towards Bran, but at the 50 meter mark something weird happened. Suddenly their eyes, which held only madness within, turned fully lifeless.