The four of them began hunting crozoids soon after and gradually racked up kills. Although they did have to run away from time to time like when they encountered the rank six crozoid for the first time.
They were successful in running away from the crozoid everytime, or it would be more precise to say that Clarence was successful at losing their pursuit everytime.
The group hadn't attracted a level six crozoid after that first one though, all the next ones they ran away from were rank five.
They tried to deal with it the first time but they soon realized just in the first few minutes of the battle that they had bitten off way more than they could chew off.
So it had ultimately fallen on Clarence again to get rid of its tail. That's what everyone thought but only Clarence knew that he was actually killing away the crozoids after taking them far away.