Bala and Mayor's plan was to use ranker Blood to lure the werewolves into the numerous traps they have set up in this village. To make sure the villager's safety, they have to separate villagers from the place where the traps were.
Moreover, Ling could feel something from their plan as he sensed that their traps were not only designed for the werewolves. Or to be more specific, he can feel that these two were planning to eliminate him as well.
Nevertheless, he started to go with the next step which was asking about the location of those traps. In his mind, he became too obvious if he just accepted their request without knowing some information about the plan. Apart from that, he had no idea what kind of traps they have set up here.
