The Walking Dead theory: Who made the tunnel?

TWD Theory #2: The Whisperers dug the tunnel.

This theory has the second most to support it (Though, that isn’t saying much), yet, like with the Dante theory, it doesn’t seem to make much logical sense.

At the end of last Sunday’s episode, Scott implies that there is a network of tunnels that the Whisperers had been using, the extent of which he didn’t fully know.

Honestly, the idea of the Whisperers having a network of tunnels around the area like a human-skin wearing version of the Viet Cong seems like something they’d do. They know the land well, have plenty of time on their hands, and are a big enough group that teams of them could go in shifts digging it out. It would also better explain Dante’s part: In this version, he doesn’t have to dig the entire tunnel (Are you kidding me?!), but instead, only has to dig an opening at Alexandria for the rest of the Whisperers to enter through.

However, it is at this point that this theory implodes.

Think about this for a moment: If the Whisperers had this intricate network of tunnels that they knew led them into Alexandria (Beta didn’t use a map, so, clearly, he knew where he was going)…why didn’t they use it earlier?

Seriously, Alpha wouldn’t need these elaborate siege plans, these sophisticated psychological warfare tactics, or her slow-burn biological warfare if she had this access tunnel. Her group is called The Whisperers, if they can’t quietly infiltrate a place (Much the way Beta did), what good are they? I’m not saying they’re all ninjas, but, if Beta is any indication, it couldn’t have been too far out of the realm of possibility for them to get their best killers together, sneak into Alexandria and either kill most of the community, or let a herd in through the gate and lay siege to the whole town, could it?

Look at the damage Beta was able to do by himself, if he had a team of about ten Whisperers with him, who knows what kind of havoc they could have wrought? Yet, somehow, despite this clear strategic advantage…they never used it until now?

Why? What’s the point of not using it? And, why haven’t the rest of the Whisperers asked Alpha this question?

You see? This theory doesn’t hold water because it’s simply impossible to fathom Alpha having this sort of advantage and sitting on it for this long.

Even with the fact that, apparently, Dante used Cheryl’s grave as the opening (Meaning he waited for her to die to have the excuse to dig the hole), you mean to tell me that nobody else died between Dante’s arrival and him murdering Cheryl? No one got injured? Or bitten? Or sick? In any way?

It just doesn’t make sense.