"Perfect," Serefina sang. The potion hissed as she tossed more ingredients into the bubbling cauldron. "Toss his coin among the others," she commanded over her shoulder, swimming to her wall of shells. Finally moving from her place, Hermione did as instructed, unhooking the satchel of coins and emptying it on top of the massive pile of golden coins in the corner of the room. Serefina liked keeping her treasures close to her. 