"Magic does have its perks" Sirius said as he cast a small enlarging charm on the back seat of the Granger's car. "You don't mind, do you?" Claire shook her head, still somewhat surprised that magic was real. Then he cast one on the boot to ensure the kid's trunks and other stuff would fit. Then he turned back to the waiting group "Shall we go?"
An hour and a half later they arrived at King's Cross Station, and, after Arnold had parked the car, the five of them walked to platform nine, pushing two trolleys and carrying their assorted pets and bags.
When they arrived at platform nine, four of them looked around, then - as one - turned and looked at Sirius.
"Is there something you want to tell us"
"Platform 9 3/4"
"Oh - that" Sirius strode forward and walked towards a pillar, then stopped "Maybe we should take your trolleys" and before Harry or Hermione could say anything, he and Arnold took their trolleys and pet carriers, then Hermione and Harry watched as the three adults walked towards the pillar and vanished.
Harry glanced at Hermione, and could not help chuckle at the look on her face - it was a mixture of delight and fear. She turned, and saw him smiling, then smiled back.
They both jumped as Sirius' head stuck out of the wall.
"You two coming?" He asked.
"Ready?" Harry asked his friend.
"Ready" She said, and taking his hand in hers, they walked through the barrier together.