Flicker will probably suggest (if no one else does) that three of them go down to the basement to check and see if anything is in there, while three stay behind to make sure no funny business happens. Also to protect the cultists because, despite Nanna May's suggestion that they are 'evil souls', Flicker doesn't know anything about these guys besides the fact that they're very impressionable and doesn't feel they deserve to die for some random witch's ritual.