0:00:07 > 0:00:10Did you know there's a fantastical world where
0:00:10 > 0:00:16you can be whoever you want and do whatever your heart desires?
0:00:16 > 0:00:19It may sound like a far away place, but it's closer than you think.
0:00:19 > 0:00:22This place is the internet.
0:00:23 > 0:00:27And for one lonely princess, it was everything she needed.
0:00:27 > 0:00:33From her attic room at the top of a giant castle, she could do whatever she liked.
0:00:33 > 0:00:37But it is also the place where Evil Arrow lives.
0:00:37 > 0:00:40Dangerous things happen when he's around.
0:00:40 > 0:00:44Things you wouldn't want to happen to you.
0:00:44 > 0:00:48Our story about LostPrincess and her new friend WhiteKnight is made up.
0:00:48 > 0:00:50- Hi!- Hey, princess!
0:00:52 > 0:00:58But what happens to the children we meet when Evil Arrow comes along is very, very real.
0:00:59 > 0:01:05Now, where was I? Oh, yes, our heroine, LostPrincess, she lived in a castle.
0:01:06 > 0:01:09Except, I suppose...
0:01:09 > 0:01:14well, it wasn't a castle, more like a house on a street, alongside hundreds of others.
0:01:18 > 0:01:23LostPrincess took a lot of care over her appearance, but online, there were no limits.
0:01:23 > 0:01:26She could look however she wanted.
0:01:26 > 0:01:28I've got green hair.
0:01:28 > 0:01:30No, it just has to be purple.
0:01:30 > 0:01:35And to go with her purple hair, she chose a bright orange dress.
0:01:35 > 0:01:37Orange was her favourite colour.
0:01:37 > 0:01:39- After purple.- Can I carry on?
0:01:39 > 0:01:42Perfect, now I'm just right.
0:01:43 > 0:01:47She had more contacts than she could count.
0:01:47 > 0:01:49But there was one person she spoke to every day.
0:01:49 > 0:01:52Whenever she came online, he was waiting.
0:02:00 > 0:02:04- No, my parents are really horrible. - Yeah, mine, too.
0:02:04 > 0:02:06My mum's always out at work.
0:02:06 > 0:02:08She doesn't care about me at all.
0:02:08 > 0:02:10LostPrincess, that's not true.
0:02:10 > 0:02:14- I wish I could leave home sometimes. - Me too.- How old are you?
0:02:14 > 0:02:18LostPrincess, be careful about the information you share.
0:02:18 > 0:02:20How old do you think?
0:02:20 > 0:02:23- About 13?- Yeah, good guess, I'm 13.
0:02:23 > 0:02:26No, you're not, you're 11.
0:02:26 > 0:02:29If I tell him that, he might not like me.
0:02:29 > 0:02:32LostPrincess began to spend more and more time on the computer.
0:02:32 > 0:02:38Even when she was supposed to be in bed, she spent hours on her computer chatting to WhiteKnight.
0:02:38 > 0:02:42But there was one thing bothering her.
0:02:42 > 0:02:44I wish I knew what you look like.
0:02:44 > 0:02:47So WhiteKnight chose a photo to send.
0:02:47 > 0:02:50But how did she know it was him?
0:02:50 > 0:02:55She was taking his word for it. He could have sent a real photo, or he could have sent a photo of anyone.
0:02:56 > 0:02:59LostPrincess decided to send a picture as well.
0:02:59 > 0:03:03But suppose he didn't like her? Suppose he realised she wasn't 13?
0:03:03 > 0:03:05He might not want to talk any more.
0:03:05 > 0:03:08So she spent hours taking the right one.
0:03:11 > 0:03:14WhiteKnight really liked her photo.
0:03:14 > 0:03:18Now he sent her messages all the time, even when she was at school.
0:03:18 > 0:03:23- Surprise!- What are you doing? - Guess who's got tickets to see Poison Apple live?
0:03:23 > 0:03:26- Seriously?- Yeah, you and me, seven o'clock tonight.
0:03:26 > 0:03:30- I don't know if I can.- Yeah, cos you said you could go last time.
0:03:30 > 0:03:34- Don't you want to come? - I will, I just won't tell her.
0:03:34 > 0:03:40WhiteKnight made her feel special and now she would meet him for real.
0:03:41 > 0:03:44LostPrincess was certain she knew exactly who WhiteKnight was.
0:03:44 > 0:03:46She had a photo.
0:03:46 > 0:03:50But when she got to the gig, no-one matched his picture.
0:03:50 > 0:03:52He would turn up, wouldn't he?
0:03:52 > 0:03:54Queues, eh?
0:03:56 > 0:03:58She sent him a text.
0:03:58 > 0:04:00Maybe he was already inside.
0:04:05 > 0:04:07Shall I see you inside?
0:04:08 > 0:04:11She'd felt safe online, but LostPrincess had never been
0:04:11 > 0:04:14to a gig before and began to feel like she shouldn't have come.
0:04:14 > 0:04:17WhiteKnight, I'm going home.
0:04:17 > 0:04:20- Is it your mum?- No.
0:04:20 > 0:04:21What's the matter?
0:04:26 > 0:04:29I'm not 13, I'm 11.
0:04:29 > 0:04:31- Oh.- See?
0:04:31 > 0:04:33Now you're really angry.
0:04:33 > 0:04:36You don't want to see me any more.
0:04:40 > 0:04:44- I do. I'd like you whatever age you are.- Really?
0:04:44 > 0:04:46You'd like me just the same, wouldn't you?
0:04:46 > 0:04:49Yeah, of course.
0:04:49 > 0:04:51If I was 14 or 40?
0:04:51 > 0:04:5340?!
0:04:53 > 0:04:56I've got something to tell you, too.
0:04:56 > 0:05:01It's all right, princess, it's WhiteKnight.
0:05:01 > 0:05:04Oi, what are you doing here, mate? This gig's for kids.
0:05:04 > 0:05:07WhiteKnight had been lying all along
0:05:07 > 0:05:11just to get LostPrincess to like him.
0:05:13 > 0:05:17He knew it was wrong to talk to children he didn't know. But that didn't stop him.
0:05:17 > 0:05:23Meeting them online meant no-one would know who he really was.
0:05:25 > 0:05:30And because he was a grown-up, he knew how to get people like LostPrincess to trust him.
0:05:32 > 0:05:34All right, mate, this way.
0:05:36 > 0:05:39LostPrincess began to see how little she knew WhiteKnight.
0:05:39 > 0:05:45Looking back through her texts, she realised how much danger she could have been in.
0:05:46 > 0:05:48Want to come to mine? Have you ever snogged anyone?
0:05:48 > 0:05:50Keep it a secret from your mum.
0:05:52 > 0:05:55You coming in? It's started.
0:05:55 > 0:05:57No, sorry.
0:06:01 > 0:06:06Now LostPrincess could see that she should never have trusted WhiteKnight.
0:06:06 > 0:06:09She'd never be friends with someone like that in the real world.
0:06:09 > 0:06:12So she did the only thing she could.
0:06:13 > 0:06:15Mum, can you come and get me?
0:06:15 > 0:06:18Don't worry, I'm on my way.
0:06:19 > 0:06:22Did you know there's a fantastical world
0:06:22 > 0:06:27where you can be whoever you want and do whatever your heart desires?
0:06:28 > 0:06:32But always keep your personal details and password secret
0:06:32 > 0:06:33and be careful what you share,
0:06:33 > 0:06:37and remember when you're online, not everyone can be trusted.
0:06:37 > 0:06:41So if something doesn't feel right, tell someone in the real word.
0:06:41 > 0:06:44I'm LostPrincess and I live in a castle,
0:06:44 > 0:06:47but it's not really a castle, it's just my bedroom.
0:06:47 > 0:06:50Subtitles by Red Bee Media Ltd
0:06:50 > 0:06:53E-mail subtitling@bbc.co.uk