The Red Door

Adam Lang is a normal teenager although he is very good at sport but not as naturally gifted as some, he just works hard. He's a reasonable student and gets on with most of his teachers and class mates. It's just him and his mum, his father disappeared in 'unusual' circumstances when he was a baby leaving her to rear their only child. Normally, to get to school, Adam would swing past his best mate Luke's place and together they would pick up another mate, Peter.
Sometimes Luke's sister, Belinda, who Adam has a crush on, would join them. Just before his fifteenth birthday, Adam found himself on his own going to school, Luke has a dentist appointment and Peter is off to a funeral. As it was just him, Adam decides to use a shorter route, Inner Lane, to get to school. Half way down the lane, he comes across an odd looking red door, one that looks like it should have been on a church or Gothic building.
It's intriguing. Adam does not use Inner Lane often, but often enough to know the door was not there the last time. Questions pop into his head as he studies it. He and his mates have often wondered what could be on the other side of the high stone wall the door is fixed to and now perhaps he might find out. But school beckons and he turns away, but he hears his name called. Adam comes back to the door and decides one quick peek will do no harm.
He turns the odd handle.