Albus Parts the Sea

Dumbledore gently waved his Wand, and a long bridge rose from the surface of the sea. Yet in the very next moment, the bridge dissolved into the air.

He was not surprised at all. "As expected... there are just as many restrictions outside."

"Transfiguration doesn't seem to work very well..." He gazed at the surging waves. "What about this, then..."

He raised his Wand again and swung it left and right, like the pendulum of a grandfather clock, yet with a rhythm all its own.

The sound of the waves around them became less clamorous. Under the direction of the Wand in Dumbledore's hand, they began to move in a pattern.

The waves before the reef actually split into two currents, one surging to the left, the other churning to the right.

Under the guidance of Dumbledore's magic, the two currents became orderly;

They washed against each other, crowded, shoved, and gradually separated, no longer joined into one sheet. Instead, each formed a wall of water, extending toward the crevice in the cliff ahead.

"Let's set off!" Dumbledore stopped swinging his Wand and simply held it in his hand, maintaining the two walls of water.

Though the reef had been scoured by the waves, its edges had still not been worn smooth. There were quite a few cracks and gaps on it where one could step;

As long as they placed their feet in those grooves and paid a little attention to their balance, they could still make their way down the reef without trouble.

Dumbledore took the lead at the front, and under his guidance, the group soon climbed down from the reef as well.

After the seawater had been pushed into walls, the huge pebbles beneath were revealed. These pebbles had indeed had their edges worn smooth,