Tristan Hughes

In this case, they're going through the normal preparations.

Alexander is supposed to spot this watercourse, basically, that goes underneath the fortifications that has dried up.

So sneaks in ahead of some of his men under cover of darkness.

They open the gates, let more in.

But remember, I mean, you can see this in some ancient city sites you go to in this part of the world, and it was all the more true in areas like this.

There's not lots of wide open space once you're inside.

What you've got are very narrow alleyways rather than streets.

This is not built for wheel transport.

This is built for a donkey with panniers on.

It's that sort of width, lots of houses closed together.

So although Macedonian troops are getting in and inside the fortifications, the people don't think, oh, well, we've got to give up.

This is their home, after all.

They keep fighting for it.

So you end up with very brutal fighting inside.

Alexander gets hit on the head with a rock of some sort, possibly just dropped or thrown from a roof.

That's the risk.

You're in this very crowded urban environment.

And it seems to concuss him quite badly.

He passes out, can't see for a while.

Again, in modern terms, you'd be quickly doing x-rays of the skull and all this.