"Hello there. I have a bet with some friends of mine about which of us can collect the most impressive shell. Impressive, of course, means balanced… not too large and not too small. Hmm... now that I think about it, the shell from an adult kappa will win me this bet! If you help me, I would be most grateful. In fact, if you bring me 4 Kappa Shells, I shall give you this in return:"