Another wonderful day, Harry thought.
He wondered whether days this happy could last until school started. Even thinking about it, he knew it was impossible; staying at Su Er's house was already imposing on his friend.
Harry lay with his eyes open, staring at the ceiling, reluctant to fall asleep.
Su Er, in the bedroom across the hall, was awake too. He had already turned off his bedside lamp, and his bright eyes flickered faintly in the dark.
Nothing unexpected had happened during their trip to the zoo that day. They had gone to a small zoo near home, and although it did not have many kinds of animals, there were enough to keep Angel happy.
It was just that, as they headed home, a scruffy big black dog that looked as though he had been a stray for a long time had watched them silently from a corner.
Neither Harry nor Angel had noticed the big black dog, but Su Er's senses were sharper. He had not seen the black dog at first either, but after looking carefully, he had found him using his surroundings to hide in the shadows.
On the way home, Su Er had kept his hand in his pocket the whole time.
A wand was hidden there.
Fortunately, by the time they had gone inside and turned off the lights for bed, that persistent feeling of being watched had disappeared.
That big black dog was definitely Harry's godfather, Sirius Black.
Many people did not know that Black was actually an Animagus, but Su Er had the advantage of foreknowledge. He knew exactly what Sirius's Animagus form was.
Still feeling uneasy, Su Er took a deep breath, decisively got up, shifted into his Animagus form, and slipped quietly out of the house.
The moon hung high