I would use brick names to link them. So it would work like this:
Spawn brick is given a name. For our purposes we will call it TheHorde.
Each brick in the path is given the name TheHorde_NUMBER, where number is some number.
So the brick names, in order, would look like this:
TheHorde (this is the spawn)
TheHorde_1
TheHorde_2
TheHorde_3
And so on.
And HellsHero, this stuff really isn't needed to start with, just basics first would be better.
That is also quite possible.
But with this style you can have a path that goes 1 way.
Whereas Army's idea would make it possible to go multiple ways.
Not sure how useful that could be, but it is something worth considering i guess. :)