And so Hermione Granger, that charming grind, still goes to the Hogwarts library and spends hours and hours working her way through the stacks, finding out what a basilisk is or how to make a lovepotion.
As Dulcamara, who sells Nemorino the eponymous potion that is supposed to make Adina fall in love (it's actually wine), baritone Ambrogio Maestri comes off best.