A schoolboy dressed up as a werewolf to hand out Halloween treats at a children’s ward yesterday.

Nine-year-old Louis Gringras, of Cricklewood, came up with the idea to give sweets to children at the Royal Free hospital when he was a patient there last year.

Louis, who goes to North West London Jewish Day School, said: “I was climbing a tree and as I came down I slipped and hit my head on a log.

“I had to have an operation at the Royal Free and stayed on the children’s ward for four or five days. I remember that a brother and sister came round to give out sweets on Halloween and I thought it was a really nice thing to do so I wanted to do it this year.”

Louis teamed up with his brother, Charlie, sister, Annabel, and friend Adam Vogel, who dressed up as a vampire, devil and a ghost to trick or treat the patients.

Mum Linzi Gringras said: “Louis came up with the idea himself and we thought it was a really lovely thing for him to do. It’s a nice way to give something back to the hospital and will hopefully encourage others to do the same in future years.”