Older Briony: So, my sister and Robbie were never able to have the time together they both so longed for... and deserved. Which ever since I've... ever since I've always felt I prevented. But what sense of hope or satisfaction could a reader derive from an ending like that? So in the book, I wanted to give Robbie and Cecilia what they lost out on in life. I'd like to think this isn't weakness or... evasion... but a final act of kindness. I gave them their happiness.