Karkaroff and Seraphina Picquery's Little Thoughts

With the help of the Flashback Charm, something like thick smoke emerged from the tip of Karkaroff's wand, resembling a puddle of water;

The puddle vanished at a visible speed. Clearly, Karkaroff had used a cleaning spell to dispose of it.

Obviously, this was magic Karkaroff had cast recently. The Flashback Charm replayed, in reverse order, exactly what spells a wand had cast.

Seeing this, Karkaroff became even more desperate to snatch back his wand, but Moody nimbly evaded him.

The Durmstrang champions wanted to help. The moment they reached for the wands in their pockets, they felt their entire bodies go rigid, unable to move.

Cedric Diggory, standing nearby, seemed to sense something. He blinked but said nothing.

Maintaining the Flashback Charm, Moody watched as thick smoke continuously rose from the tip of Karkaroff's wand, revealing traces of different spells, including the Goblet of Fire.

"Karkaroff..." Moody slowly said as he looked at the "smoky Goblet of Fire with its flickering flames." "Looks like a Confundus Charm..."

The instant the "smoky Goblet of Fire" appeared, it was as though Karkaroff's spine had been pulled from his body. He immediately slumped.

The Durmstrang champions reacted much the same way. The sensation of being unable to move had vanished, yet they dared not make any rash moves;

First, they had just been controlled by magic and still had no idea what was going on;

Second, that "smoky Goblet of Fire" showed that Karkaroff really had done something. He might even have been the one truly at fault.

Harry realized this as well and said to Wizet and the others in sudden understanding, "So he was behind this! No wonder things turned out like this!"

Madame Maxime's lips pressed into an even tighter line. She moved several steps toward Dumbledore, looking down