Part of their activity was to listen to actual sounds in the stomachs of corpses under the graves? Uhhh... Natalia couldn't decide what was more terrifying: the thought of leaning close to the graves or hearing the uncanny sounds of the stomach... if Nat would be skilled enough to detect it at all.

"Umm...Professor?" An unsettling question was spiraling in her mind. "Are these...real graves?" Hopefully these were just realistic imitations of what a real cemetery would look and feel like, which would make the most sense, because the entire classroom couldn't have just apparated to a different location, right? But then again, no one could be certain of the full extent of magic.

Reluctantly, Natalia strolled to the nearest grave in a sideways manner, as if she was afraid to encounter some sort of apparition if she walked face forward. The fourth year Lioness dropped to her knees gingerly, feeling the soft green grass under her palms. Uncertain what to do next, Natalia slowly bent her back and positioned left ear (her good year) toward the ground. Was this what she was suppose to do? Yes, or how else would she be able to hear the gastric noises?

At first, Natalia detected no evident sound. It was time to pull out her wand and use that sound-amplifying spell! Being in a rather uncomfortable position, Natalia twisted her arm to reach into her back pocket (not a very safe place to store wands, but whatever) to grabbed out her wand. Pointing the wand tip directly toward the ground, she muttered: "Sonorus!"

.....

Natalia could hear absolutely nothing. Not even worms.

"Sonorus!" Applying the charm again did not help to amplify the sound either.