"Hmm..." Sirius Black rubbed his chin. "Build an underwater viewing platform?"
He seriously considered what Harry had said. "Harry, would you prefer that format?"
"Sirius, that was just my guess," Harry explained with a wave of his hand. "I'm mainly curious about what exactly you're planning to do after throwing so much kelp into the Black Lake."
"We're planning to broadcast your Second Task live!" Sirius Black raised his eyebrows proudly. "Muggle television can broadcast sports events live, can't it?"
"Now we can do the same thing! I remember Muggles use a device called... a camera to record images, then send them into a television..."
He pointed at the basketfuls of kelp. "We're using Image Revealing Kelp as cameras. It can also record the images of your match, then display them on a screen."
"That's amazing?" Harry's eyes widened. "It can actually achieve a live broadcast effect?"
"Of course!" Sirius Black nodded, took a rolled-up screen from his pocket, and handed it to Harry. "Do you want to try it now?"
When Harry unfolded the screen, Sirius Black had already walked a short distance away, taken a clump of kelp from a basket, and lifted it to chest height.
On the white screen were lines of clear, bold black writing. As soon as Harry unfolded the screen, his attention was caught by the words.
"The Image Projection Screen is a Magical Artifact combined with the Mirage Charm, designed to provide everyone with the best live experience."
"Effect... After you speak the incantation, the screen will display the corresponding live match footage. The screen can capture key details from the match, allowing you to feel the atmosphere of the competition as if you were there."
After reading those two descriptions, Harry quickly looked down, searching for the actual incantation.
"The Image