The mother of a Croydon schoolboy who died after an illegal rave has paid tribute to her "lovely son".
Daniel Spargo-Mabbs, aged 16, died yesterday afternoon after being taken ill at the party in Hayes, Hillingdon, in the early hours of Saturday morning.
Speaking at the family home in Addiscombe, his mother Fiona said her son had reassured her on Friday night he would return home safe.
Police today arrested two men, aged 18 and 19 and both from Croydon, on suspicion of supplying a controlled substance.
A Metropolitan Police spokesman said officers and London Ambulance Service had attended an "illegal rave" at an industrial site in Pump Lane, Silverdale Road, at 4am on Saturday after receiving reports of an unconscious 16-year-old boy.
He was taken to a west London hospital believed to suffering from a drug overdose.
Daniel, a student at Archbishop Tenison's Church of England High School, was later transferred to second hospital in central London, where he lost his battle for life at lunchtime yesterday.
Earlier today, Richard Parrish, the school's headteacher, led tributes to the 16-year-old today, saying "the world is the poorer without with him".
Mrs Spargo-Mabbs said: “My boys are the loveliest boys in the whole world.
“We are struggling. It was his first time doing anything like this. It is important to me that people know that.
“If just one thing could come out of this it is that this could happen to anyone. He was a 16-year-old boy and he did something that boys do."
She added: “A few years ago I heard a talk by murder victim Jimmy Mizen's mum and she said that something that comforted her was that she had told Jimmy she loved him and had given him a hug and a kiss before he had left the house.
“After that I always did the same with my boys and it became an in joke. Danny always used to say “I love you too mum, I promise I won't die”.
“And that's exactly what he said when he went out on Friday. He didn't keep that promise. But he didn't know - if he had known, he wouldn't have done it.”
Daniel's brother Jacob, 18, said: "He was the most lovely, easy-going, pleasant guy you could meet. He got along with everyone."