As before, if the player they're asking has 1 or more of the requested cards, they must hand them over. And then youngest player can ask the same player or another player for other cards – either to complete the same book (so another King, in this example) or to help complete another book. So if the youngest person has 2 Kings, they can say to another player, 'Give me your Kings!'
The remaining cards are placed face down in a pile called the Fish Pond.