"Whoa! There's a small river flowing right in front of the gate!" Zach got up from his seat and exclaimed as he looked out of the window.
Ramon rolled his eyes and instantly corrected him, "Look closely! That's not a river; it isn't flowing. It's called a moat."
"What's the difference?" Zach kept on staring at the moat as the carriages advanced towards the outer gate of the Drayston castle.
Ramon leaned his head towards the window of the carriage and replied as he examined the tall stone wall, "It's basically a ditch that is dug around the castle to improve the castle's defenses. You see the drawbridge that this carriage is moving on right now, yes? The enemies can't enter once the bridge is pulled up."
"Huh!" Zach also craned his neck and looked up at the wall in front of them. And he exclaimed again, "Whoa! And the wall is double, maybe triple the height of our Palace's wall's height."
