Sentence:  “Well, let's hope you're right, darling. In the meantime,” said Kipper, “if I don't get that whisky-and-soda soon, I shall disintegrate. Would you mind if I went in search of it, Mrs Travers?” “It's the very thing I was about to suggest myself. Dash along and drink your fill, my unhappy young stag at eve.” “I'm feeling rather like a <WSD>restorative</WSD>, too,” said Bobbie. “Me also,” I said, swept along on the tide of the popular movement. “Though I would advise,” I said, when we were outside, “making it port. More authority.” 
Meaning of the word marked with <WSD> tags:  An alcoholic drink, especially with tonic.