Location from harry-potter-chamber-of-secrets by
The hidden wizarding shopping street in London where the Weasleys and Grangers buy school supplies, Lockhart signs books at Flourish and Blotts, and Lucius Malfoy slips a dark artifact into a child's cauldron.
Diagon Alley this year is dominated by Gilderoy Lockhart's book signing event at Flourish and Blotts, where the celebrity wizard poses for photos with Harry while Arthur Weasley and Lucius Malfoy get into a fistfight among the bookshelves. It is during this chaos -- cauldrons of second-hand books knocked over, children screaming, Hagrid pulling the two men apart -- that Lucius picks up Ginny's battered Transfiguration textbook, slips the diary inside, and puts it back in her cauldron. The moment is invisible in the crowd. No one notices. And Ginny Weasley starts her first year at Hogwarts with a piece of Voldemort's soul hidden among her school supplies.
A long, winding cobblestoned street packed with colorful shopfronts. Flourish and Blotts is crammed with witches queuing for Lockhart's book signing. Gringotts rises at the far end. The street buzzes with families buying school supplies.
Also known as: Diagon Alley, the Alley