In Professor Slughorn's potions class, Remus, James, Peter, and Sirius leaned over their cauldrons, brewing Amortentia. As the potion released its enchanting scents, the four friends exchanged curious glances.

"Wait, that's... an old library and a hint of... vanilla," James added, surprised.

Sirius nodded. "I can smell it too. It's like... a familiar cologne."

Meanwhile, Snape brooded in the corner, his expression unreadable as he worked on his potion.