Dementor

A whistle suddenly sounded on the platform.

Steam burst from the locomotive's chimney, instantly filling the entire platform. The train jolted, then began to move.

After hastily stuffing the macarons in their hands into their mouths, the Weasley twins stuck their arms out the window and waved goodbye to Mr. and Mrs. Weasley on the platform, until the train had completely left everyone behind.

After finishing his macaron, Albert stood and said to the three of them, "I need to head to the prefects' compartment."

"Oh, we nearly forgot—you're a prefect now." The three exchanged knowing looks with Albert and said happily, "We've got a prefect looking out for us now."

"Oh, right. This is for you."

As Albert opened the compartment door to leave, he seemed to remember something and handed a bottle of potion to Fred.

"What's this?"

Fred took the glass vial, stared at the golden liquid inside, blinked, and asked, "Liquid Luck?"

"It's Draught of Living Death," Albert said irritably.

"We thought it was Liquid Luck." The twins pretended to be disappointed. "Why are you giving us Draught of Living Death?"

"The Dementors will definitely come to inspect the train, to see whether Black is hiding in one of the compartments."

"Why would Dementors inspect the train? Is Black really hiding on board?" Lee Jordan could not understand how Black could have slipped onto this train.

"Black can't be that stupid. It's probably just a routine search." All three turned to Albert, hoping for a satisfactory answer.

"The Dementors won't pass up an opportunity like this. To them, this train is a feast." Albert spoke meaningfully. "After those things have come through, drink some of this. It'll make you feel better."

"They won't attack students, will they?" George asked worriedly.

"Those unlucky people whose emotions get