Harry Potter's childhood by McGonagall

The story takes place during the summer between Harry's 14th and 15th birthday, while he was still at his uncle's. During dinner at Grimmault place with the Order, Sirius asked McGonagall about Harry's life with the Dursleys. At the demand of Dumbledore, she indeed visited Harry every year as an animagi, from the day he was taken under their roof to his 10th birthday.