Sand flicked into the air off hooves as the four ponies galloped up the beach towards the river outlet, the only sound being the breaths they drew as they pushed themselves along. It didn't take too long to reach the outlet, and eventually the one end of the wall. As Fleur had predicted, the wall was guarded, with spotlights set up to shine over the river. What she hadn't predicted was the rope gate stretching across the river to the wall on the far side, blocking ships from going in or out.