THE numbers 7/7 have haunted Danny Biddle since the day his world was blown apart by a suicide bomber . . . but not any more.

Today he sits his little newborn bundle of hope on what remains of his shattered legs and gazes deep into her blue eyes.

She is his daughter Caitlyn, born astonishingly weighing 7 pounds 7 ounces-and bringing new significance to figures that before simply meant the day his life almost ended.

Last night Danny, 29, the most badly-injured survivor of the London Tube bombings hugged her tight and beamed:

"We're on top of the world. Caitlyn is the best thing that's ever happened to us and we're so very proud of our beautiful baby girl."

Like any new parents, he and wife Lisa, 28, think their five-week-old baby is a miracle. But in this case she really IS.

Danny smiled: "Three years ago Lisa was being told to prepare herself for the worst, that I wasn't going to live - that she should say goodbye.

Injuries

"And yet here we are, married for over a year with a beautiful little baby daughter.

"Everything that I lay in hospital dreaming about, all that I didn't think was possible, has come true."

Project manager Danny was standing feet from the Edgware Road Tube bomber when the terrorist detonated explosives packed into his rucksack on July 7, 2005.

The force of the blast blew him out of the carriage and left him with appalling injuries.

His wounds needed 300 stitches and he lost both legs, his spleen, the sight in one eye and the hearing in his left ear.

Doctors had little hope for his chances, but they woefully underestimated Danny's incredible will to survive. He was the last of the survivors to leave hospital-nearly a YEAR after the attacks that killed 52 and injured 700.

CARNAGE: The scene of the bombing attack

But he made it. Now he has topped his remarkable journey back to life by becoming a dad for the first time.

Medics had warned the couple -who've been together nine years and married last April-that it could take years for Lisa to get pregnant because of the drugs used to treat his appalling injuries. But in fact it took just weeks.

Meanwhile, baby Caitlyn has already survived a hole-in-the- heart scare, proving she has inherited her daddy's fighting spirit.

And she has even managed to erase the horror associated with the numbers 7/7 since that hellish day.

Lisa explained: "When Caitlyn was born they told me how much she weighed, but it was in kilos. I asked them to convert it into pounds and ounces and they told me she was 7lbs 7ozs.

"It was an unreal moment, maybe some kind of fate. Although now it's really nice because when we hear the words 7/7 it reminds us of our baby and her birth, not something awful.

Positive

"They're now positive numbers-not painful memories."

But the actual birth was a fraught time for Danny.

Lisa went into labour on Friday, October 24 and the couple arrived at hospital only to be told to go home and wait for the contractions to increase.

Danny joked: "It was about 6 on the Saturday night that things really started to happen after that-just as Strictly Come Dancing was starting. By the time X Factor was on we were itching to get to the hospital!

"But then there were some complications. The baby was upside down and had to be carefully turned. In the end she wasn't born until 1.54 on Sunday afternoon."

Danny had wanted to be with Lisa for the birth. But once inside the hospital memories of 7/7 came flooding back and the emotions became too hard. He was in a family room next door waiting desperately to hear news.

He recalled: "Lisa was in labour for nearly 30 hours and then when it came to it they had to rush her in for an assisted delivery. There was also a bit of fear on my part of going back into something like an operating theatre. "

LONG ROAD: Danny in rehab

He says: "Minutes seemed like hours, it was a nightmare. I had really wanted to go in but we were worried that with all the similarities from when I was in hospital -the sights, the smells and the noises-it would have all been too much.

"Then when they had to take Lisa in quickly it was practically very difficult for me to go in too because of the wheelchair.

"But waiting in that room alone was dreadful. Thousands of thoughts rush through your mind, it's a constant state of panic. I just wanted to know what was going on, and that they were both OK.

"There I was, sat all alone absolutely petrified that something might go wrong and I would lose them both.

"I heard Caitlyn scream, but then it went quiet. So instead of feeling happy and relieved I actually felt even more nervous.

"At that point I had all the emotions of the seventh of July running through me again."

Then Lisa's mum Lyn, who had been there throughout the birth, finally brought the baby through the doors and asked: "Do you want to hold your daughter?"

He recalls: "It was total elation. There's no feeling like it, no words to describe it. When I held her for the first time I looked down at her and it was quite surreal because I just never thought I would see the day.

"I had never held a baby before-Caitlyn is the first and now I don't want to let her go.

"When I'm holding her everything else seems non-existent. My whole focus is on her and no matter what's going on around us nothing else seems to come into focus. The calming effect is mesmerising.

Helpless

"Every time I hold her everything feels right, for that minute, the whole world just feels right."

Just after the birth, Danny and Lisa's joy turned to panic when doctors told them Caitlyn had a heart murmur and needed to go to the intensive care unit to be monitored.

Danny said: "They was the worst couple of hours of my life without any shadow of doubt.

"I was really panic stricken. If something happens to you then you can deal with it, but when it's your child you just feel helpless."

He also had to cope with flashbacks to his own time in intensive care.

Danny recalled: "All the noises-the constant beeping of the machines, the ventilators shooshing to help the babies breathe were all things that I had had attached to me.

BORN SURVIVOR: Caitlyn is all Danny dreamed of

"So it was a horrendous time being consumed by fear and panic and then having all those memories coming back to me."

Tiny Caitlyn then had to be taken for a chest X-ray, but Lisa's dad Mick had to go in with her in case Danny's metal wheelchair affected the machines.

"It was agonising. I felt so utterly helpless," said Danny.

"Lisa was at one side of the hospital tired and in pain and my daughter was on the other side and I didn't really know what was going on. It was a tough time."

Doctors had detected a murmur was caused by a small hole in Caitlyn's heart.

It wasn't until last week that the family were told the hole had closed over naturally and they were able to settle down to their new life together in their specially converted bungalow in Essex.

Lisa, a former shipping clerk, grinned: "When we heard that she was all OK last week and got home with her all that panic and fear disappeared and we are now just enjoying being parents."

The couple's sights are now firmly fixed on the future - and they are even considering a brother or sister for Caitlyn.

Danny-who can be seen on video with Caitlyn at notw.co.uk-added: "We can't wait to live as a proper as a family."

And as he vowed: "I wasn't beaten on that day in 2005, they didn't beat me when I married Lisa on our wedding day and now we've got Caitlyn I know I'll NEVER be beaten.

"If you've got people who love and care for you then you can do anything."

"I've got my life back and I intend to live it the very best way that I can."