“What's this one, Mum? There's no return address, and there's like, five stamps on it. Who's it from?"Leaning forward to get a closer look at the stamps, I didn't notice the fleeting look of immense sadness pass over her face."Oh it's nothing, darling."I raised my eyebrow at her. She sighed."An overseas friend. You wouldn't know her."And before I could ask what 'her' name was, Mum had left the room.”