How we cite our quotes: (Chapter.Paragraph)
Quote #7
The Kappa feeds on human blood but may be persuaded not to harm a person if it is thrown a cucumber with that person's name carved into it. In confrontation, a wizard should trick the Kappa into bowing – if it does so, the water in the hollow of its head will run out, depriving it of all its strength. (19.1)
The Kappa can only be defeated through deception. If you hope to walk away from this demon alive, you better trick it into spilling the water supply from out of its head. It's that or have a cucumber handy. Either will do.
Quote #8
Having lured the unwary onto its back, [the kelpie] will dive straight to the bottom of its river or lake and devour the rider, letting the entrails float to the surface. (19.3)
The kelpie's whole deal is a one big lie. It's a shape-shifter, so it pretends to be one thing (a beautiful horse) then it lures you into the water and eats you. See, some lies are really, really mean.
Quote #9
Leprechauns produce a realistic goldlike substance that vanishes after a few hours, to their great amusement. Leprechauns eat leaves and, despite their reputation as pranksters, are not known ever to have done lasting damage to a human. (20.1)
Not sure why you would expect anything less than a little deceit from a leprechaun. These guys make fool's gold and then trick you into thinking it's real while you snatch it up. Ron found this out the hard way in Harry Potter and the Goblet of Fire. Oh, well.