DELIA. Oh, I know.
BELINDA. Darling, I believe you've grown up. It's quite time I settled down.
DELIA. With Mr. Robinson?
(BELINDA looks thoughtfully at DELIA for a little time and then sits up.)
BELINDA (mysteriously). Delia, are you prepared for a great secret to be revealed to you?
DELIA (childishly). Oh, I love secrets.
BELINDA (reproachfully). Darling, you mustn't take it like that. This is a great, deep, dark secret; you'll probably need your sal volatile.
DELIA (excitedly). Go on!
BELINDA. Well—(Looking round the room.) Shall we have the lights down a little?
DELIA. Go on, mummy.