The best social group.

After a hurried breakfast they pulled on jackets and scarves againts
the chilly gray January morning. Harry had an unpleasant constricted
sensation innhis chest; he did not want to say good-bye to Sirius. He
had a bad feeling about his parting; he did not know when they
would see each other and felt it was incumbent upon him to
say something to Sirius to stop him doing anything stupid --- Harry
was worried that Snape's accusation of cowardice had stung Sirius so
badly he might even now be planning some foolhardy trip beyond
Grimmauld Place. Before he could think of what to say, however,
Sirius beckoned him to his side.
"I want you to take this," he said quietly, thrusting a badly wrapped
package roughly the size of a paperback book into Harry's hands.
"What is it?" Harry asked.
"A way of letting me know if Snape's giving you a hard time. No,
don't open it here!" said Sirius, with a wary look of Mrs. Weasly,
who was trying to persuade the twins to wear hand-knitted mittens.
"I doubt Molly would approve --- but I want you to use it if you need
me, all right?"
"Okay," said Harry, stowing the package away in the inside pocket
of his jacket, but he knew he would never use whatever it was. It
would not be he, Harry, who lured Sirius from his place to safety, no
matter how foully Snape treated him in their forthcoming Occlu-
mency classes.
"Let's go, then," said Sirius, clapping Harry on the shoulder and
smiling grimly, and before Harry could say anything else, they were
heading upstairs, stopping before the heavily chained and bolted front
door, surrounded by Weasleys.
"Good-bye Harry, take care," said Mrs. Weasley, hugging him.
"See you harry, and keep an eye out for snakes for me!" said Mr.
Weasley genially, shaking his hand.
"Right --- yeah," said Harry distractedly. It was his last chance to
tell Sirius to be careful; he turned, looked into his godfather's face and