The [blank_start]Choirboys[blank_end] being described as [blank_start]"something dark"[blank_end] hints that there may be [blank_start]evil[blank_end] inside them.
The stick to the [blank_start]rules[blank_end] of their [blank_start]old life[blank_end] and trying to [blank_start]recreate[blank_end] the society they are used to.