Raffa, the short-statured, brave-hearted hero of Linda Sue Park's Wing & Claw trilogy, possesses the encyclopedic knowledge of flora required of a young apothecary. He easily recalls each plant's physical and medicinal properties, and comprehends how best to combine and manipulate to achieve the desired affects in human subjects. But Raffa holds something more inside him than most "pothers." Witness: 

"[Raffa] pounded the stem and leaves of the scarlet vine to a pulp, then added some to the poultice. As he stirred, the paste began to take on a gentle vermilion glow, and in his mind he heard something that sounded like a faraway cowbell … ."