Rosie Lewis - Trapped: The Terrifying True Story of a Secret World of Abuse

It was a dreary, overcast day in March 2009 when I first met Phoebe. As I sat in the local authority training centre, I shook my lifeless mobile phone several times, hoping that news of a fostering referral would drift across the airwaves. Between placements I was filled with a restless yearning; an itch I couldnt scratch. How blissfully ignorant I was back then, unaware of the far-reaching impact she would have on our family.

It would be wise to keep a collection of pebbles in your kitchen drawer, our lively tutor was drilling us on the latest techniques for safeguarding drug-addicted teenagers. That way youll remember to drop one in if they trust you enough to ask for a bag.

Ellie was a recent recruit to the local authority team of trainers and a registered nurse by profession. The tall blonde was proving popular with foster carers, her courses particularly well attended by other halves I had never seen as many men on a training day before. It seemed word of her sultry tones, shiny lip gloss and stiletto heels had worked its way quickly around the fostering network of the north of England.

A flurry of blank looks travelled around the semi-circle of foster carers in front of her.

We lost one of our teenagers earlier this year, Ellie went on to explain. She passed out with a bag of solvent still fixed to her ears. With a heavy object inside, the plastic would have been far more likely to fall from her face as she collapsed. A little forethought from her carer might just have saved her life.

I take it were expected to provide em with a WH Smith voucher as well, the black foster carer sitting opposite me offered in a Brummie accent, daring a touch of sarcasm, to save em forkin out for town glue.

Sniggers swept around the room.

Ellie held out one manicured hand, tucking a stray tendril of shiny blonde hair behind her ear with the other. I take it that some of you feel uncomfortable with what Ive just said?

Glancing around, I noticed several of the women nodding their heads. Most of the men sat with their legs sprawled wide, one or two with dreamy expressions on their faces.

Surely its our job to discourage risky behaviour? I ventured. Social workers were keen to encourage foster carers to show Looked After Children the same quality of care as their own families. I was certain that I wouldnt provide bags with rocks inside for my own children, Emily and Jamie, freeing them to get high in the knowledge that Health & Safety procedures had been adhered to by their attentive mother.

Ellie smiled, shaking her head. I know its not easy to stomach but its our responsibility to safeguard these children. Theyre damaged most of them need something just to get through the day. Showing disapproval will simply drive their behaviour underground. Having to hide their addiction, she tilted her dainty hand in mid-air, rocking it slightly from side to side, might just be enough to tip them over the edge.

After a buffet lunch courtesy of the local authority, Ellie moved on to drug classifications and how to recognise paraphernalia among seemingly innocent everyday objects such as empty fizzy drink cans. It was fascinating but her comment about damaged children needing a prop to survive kept playing over in my mind. I felt a longing to soothe the turmoil a child must feel to treat their body with such disregard. The uncomfortable feeling reminded me of why I had decided to register as a foster carer. Like many of my fellow carers, I was drawn to it.

For the rest of the afternoon the class was held rapt, not only by Ellies dynamic teaching style but also the shocking nature of the facts she was imparting. Between the 20 or so carers present we had chalked up a collective experience of over 200 years of fostering, yet most of us were unaware that the latest trend for self-harmers was to insert diazepam capsules into the cuts in their skin for rapid absorption, or that wheelie bins often went missing because they offered an ideal confined space for solvent abuse.