Here is the text from the original newspaper article on the daily mail 2006 containing the open letter. It's worth reading I think -partly for additional details of the case itself- but also as the edited versions, taken out of context of the original article, make it seem quite odd. But the oddness is IMO coming from journalistic intervention, IE it's not really a 'letter', it's an article written by a journalist who spoke to the parents.
"Ruth Wilson was 16 when she went missing in November 1995. Her parents Ian, 56, and Karen, are teachers in Betchworth, Surrey. They have a younger daughter, Jenny, 24. Ian writes:
Dear Ruth We still have the presents we bought you for Christmas in 1995. They're safe in a drawer - waiting for you to come back, though I expect your tastes have changed so much you'd probably laugh at the music and clothes. Though the house is too large now that your sister Jenny has moved out, we can't bear to move. It's your home after all. Jenny lives nearby. You remember how she adores horses? Now she's got a full-time job in an equestrian centre. She's as happy as she can be without her big sister around. Your disappearance is still a mystery. You were confident, independent minded and, apart from the usual teenage frictions, seemed so happy at home. You enjoyed bell ringing and had just started learning to play the organ. The congregation at the local church still prays for you every week. Though you'd just broken off with your boyfriend, you were still close. You had lots of friends and had just joined the sixth form and were talking of studying archaeology at university. You had a Saturday job in a music shop, and were so trustworthy that neighbours queued up to ask you to babysit. In fact, you were so reliable that when you didn't come home from school that Monday afternoon in November 1995, we assumed we'd forgotten one of your many activities. It was late at night before the terrible truth dawned. Surrey police swept straight into action. They've been brilliant and still keep in touch. They discovered that, instead of going to school, you had called a taxi to take you to Dorking library. You took taxis occasionally and regularly visited the library, but even so, this was totally out of character. As the day progressed, your behaviour became even more inexplicable. You visited a florist and ordered an expensive bouquet for Mum. You left no message - simply strict instructions that it must not be delivered until Wednesday. Then, around 4pm, you called another taxi from Dorking station and asked to be taken to Box Hill, a local beauty spot. You asked the driver to leave you by a bridleway a short way from a pub. The light was failing as you got out. The driver says you stood there as he drove off. You can imagine our terror and how we searched month after month. I trawled London - hoping against hope I'd find you. We wondered if you had a secret, but your Filofax revealed nothing. The police discovered you had visited Box Hill before, but don't know why. They also found that you'd been worried about your grades and had hidden your last school report from us. There have been many false leads. Every time our spirits are raised, only to be dashed again. It's torture. Even now I find myself driving past bus stops and staring. Could that young woman - you're 27 now - be you? Most of all, we want you to know that while we miss you desperately and want to know you're fine, we have never been angry with you, whatever prompted you to go that day. We are just so sad that a big chunk of your life has been lived without us. There is nothing to forgive. Mum and I simply want to put our arms around you and tell you how much we love you. All any parent wants is for their child to be happy. Knowing you are safe and well - even if you don't want to come home - would make me the happiest man in the world. {4}"