Annette was in big trouble.
She was such an idiot! What was she thinking? Everyone knew she was a klutz, so why did they leave the cleaning to her? The vase was broken! Dropped on the ground by a careless Annette who was too busy singing to notice the podium. So now there were shards of porcelain on the ground, and it was all her fault!
And it was a part of Garreg Mach! The monastery was almost 1000 years old, who knew how much history it had seen? How much was it worth? And it had flowers! The fancy kind too! It would have been better if Annette had been knocked off the podium!
What was going to happen to her? She was probably going to expelled! A crime this severe deserves nothing less.
"There is a way to avoid such a fate," A sinister voice whispered in her mind, "No one else was here. No one could hear you, and no one can see you. It is more than likely that you were the only witness; no one needs to ever know. It's as simple as taking the evidence and disposing of it. It's only a vase, after all. No one will miss it."
The stress of the situation must have gotten to Annette since she could swear a tiny Hubert was sitting on her shoulder, whispering temptations in her ear.
"Don't listen to him, Annie!" A tiny Mercedes protested from her other shoulder, "It might have been important to someone. They wouldn't like it if something happened and they had no idea. You should tell the truth." Mercie, or rather what was probably her conscience that decided to take the form of the most angel-like person she knew. She supposed that meant Hubert was the devil then.
"Is it truly worth it? To go so far for someone who you don't even know? Someone who may not even exist? No, the faculty will simply punish you, and your sacrifice will be in vain." The tiny Hubert insisted.
"You don't know that, Hubert!" Mercie chided, "Maybe they will appreciate her honesty and let her off with a warning. Even if they do punish her, it'll be over eventually. But if you hide it, then you will always feel guilty whenever you see where the vase used to be."
"Are you truly serious? She'd forget about it before the weekend! No one would be so soft as to cry over a broken vase." Hubert scoffed, his arms crossed.
"No, she's right," Annette said through her tears, "Thank you, Mercie! You know me so well. I'll confess!" She declared, before running off. She'd find Seteth and tell him what she did, so he could fix her mistake. It was the right thing to do. Mercie knew Annette better than herself. She would never be able to forgive herself if she had tried to hide the broken remains.
All it took was an illusion of her best friend and Edelgard's evil retainer to understand.