What are the two boys doing? Why are they away from home?

Maniac discovers that the two young boys have run away from Two Mills and are attempting to make their way to Mexico. Maniac becomes worried for their safety and decides he needs to help get them back to Two Mills even though he himself vowed never to return. With bribes of pizza and a secret shortcut to Mexico, Maniac manages to coax the boys back to Two Mills with him only to discover that the two young boys, Piper and Russell, are the younger siblings of John McNabb.