I've finally come up with a name for a chapter! Yay! OK, Sarah, now I will thank you for editing my story. Are you happy now?! That's what I thought! Anyway, I'm sorry to those of you who were expecting a long chapter. This one is very short and I'll try to make Chapter 5 longer.

Chapter 4- Diagon Alley

Harry and the Weasleys had no other way to get to Diagon Alley but with Floo Powder. The last time he had taken Floo Powder to Diagon Alley, Harry had ended up in Knockturn Alley, in which artifacts and tools of the Dark Arts were sold. But now Harry knew better, and he also knew that nothing like the Knockturn Alley incident would ever happen again.
After Percy, Fred, George,Ginny, and Ron had taken the Floo Powder, it was Harry's turn. He would never get over the experience of Floo Powder, which was very frightening. When Harry finally did land in the chimney of the Leaky Cauldron, he had a lot of soot on him, but not nearly as much as he had the first time that he used Floo Powder. The Weasley siblings were all there waiting for him. Moments later, Mr. and Mrs. Weasley apparated into the Leaky Cauldron, obviously not wanting to go through the Floo Powder stuff themselves.
Mr. Weasley immediately started towards the door.
"And where do you think you're going?" Mrs. Weasley interrogated.
"Into Muggle London…" Mr. Weasley said in a hopeful tone, waiting for his wife's reply.
"I don't think so," replied Mrs. Weasley, "you're coming with us."
"But Molly," begged Mr. Weasley in a whiney voice, "I want to go to Muggle London!"
"That's too bad!"
Harry felt like laughing out loud watching Mr. Weasley skulk behind all of them while Mrs. Weasley tapped her wand on the wall to open the way to Diagon Alley. Mr. Weasley looked very childish indeed.

. . .

The first place they went to in Diagon Alley was Gringotts.
Harry had piles and piles of gold Galleons, silver Sickles, and bronze Knuts, while the Weasley's only had a few coins. Harry had no idea where Fred and George had kept their money, but it was still all he could do to keep from giving them some of his money.
They then went to Flourish & Blotts to each buy their lone book.
Upon leaving Flourish & Blotts, George wasted no time in requesting, "Mum, can we go to Quality Quidditch Supplies?"
"Well, I guess that would be okay," she replied, "but be quick."
"Yes, Mum!"
They then rushed off into Quality Quidditch Supplies.
"Wanna go look at the some of the new broomsticks?" Ron asked Harry.
"I will later, but first I have to buy some more broom polish. I'm almost out."
"Okay, I'll be waiting."
Harry went to the checkout counter, where Fred and George were standing.
"So, how much money do need?" Harry questioned.
"One hundred Galleons," the twins said in unison, quickly, as if trying to get it over with.
Harry then pulled out the money from his pouch, and handed it over.
Fred took the money and reluctantly gave the money to the cashier. Harry knew that until recently, the money put into buying the Silver Streak, three hundred Galleons total, had been the most money they had ever seen, let alone spent.
"We'd like to put it on Hogwarts order," George chimed in.
"When?" the cashier asked.
"By September 12," George replied.
"Okay, that'll be 16 Sickles."
The twins turned to look at Harry and he again took money from his pouch.
As they walked away without the broomstick, Harry's curiosity got the best of him. "What is Hogwarts order?"
"They're delivering the broom to Hogwarts so that Ron doesn't see us with it," Fred answered.
"Oh, yeah," Harry remembered, before going back to the checkout counter to buy some broom polish.
When Harry found Ron, he was staring at a display Silver Streak, mumbling, "I wish I had one."