When he got close enough he realized it was a medium sized fishing boat. It was sitting still in the water and people were working on the deck. When he could start to hear them talking he barked. One man look over the side and started talking rapidly. Another man came and looked and they started moving around.
The two men jumped into a smaller boat and it was lowered into the water. Sirius started to swim towards it. When he reached it the two men pulled him in and the boat was raised back up. He was lifted out of the boat and taken into a cabin and wrapped in a blanket.
After a few minutes someone came in with a bowl of water and some food. Sirius drank all the water and ate all the food and soon fell asleep. When he woke he had no idea how long he had slept but he was still on the boat. He stumbled over to the dish and drank and ate some more. Then he heard a commotion outside.
The door was open and he heard shouting so he went to investigate. One man was trying to hurt the others, including the two who had helped him. Sirius leapt into action, he jumped at the man's back and knocked him over. He then bared his teeth near the man's throat and growled.
The rest of the men on the boat tied the guy up and Sirius stepped away. He then went back to the cabin and lay back down. The two men who had carried him on board walked in and looked at him. The first said, "That was the most amazing thing. I've ever seen. I wonder where he came from, we're miles from land."
The second scratched Sirius' ears and said to the other man, "I thought I was going to lose my boat to that pirate. I'll be glad when we get back to port and can turn him over to the authorities." He then addressed Sirius, "Thanks for the help pup, how about a nice bit of fish for a treat."
Sirius woofed quietly, fish sounded great, he hoped they would cook it though he didn't really like sushi.
That evening when they pulled into port Sirius was hiding in the cabin. Once they reached the dock he slipped out and looked around. It was almost dark; as soon as the light dropped a bit more he would be able to move out amongst the shadows. He was sure the wizard authorities would be on his trail by now.
Before he could slip away he saw two muggles in uniforms approach the boat, the owner came out and waved and they returned the greeting. A couple of the men on board pulled the pirate out onto the deck. The owner explained what happened and how the dog had jumped him.
They carted off the man and the owner turned to Sirius, "I going to head home now. You can come with me if you want." Sirius decided to follow him thinking even if the authorities know I'm an animagus they won't look for me amongst the muggle pets.
Once they were well away from the docks Sirius nudged the man's hand. The man scratched his ears then Sirius turned and ran off. He hoped the man understood his thank you and goodbye. He waited until dark and looked for a pay phone. He found one that still had a directory and looked up Vernon Dursley. The whole trip he had been trying to remember their names and it had finally come to him. He found the address and headed out in his dog form.
He didn't know how long he had run but he finally reached the house. He slipped into the bushes and listened for activity in the house. He fell asleep some time during the night and when he woke up the sun was shining. He had woke up when the front door closed. Two adults and a child were dressed up and heading out of the house.
The whale of a child was complaining, "Do we have to go see the freak again?"
Petunia said, "Sorry Duddy, we have to know if he is awake yet. At least it's not a long drive to St. Theresa's and we'll stop for ice cream on the way home."
The boy said, "If I have to spend all day moping over the freak I want a present too." The group got into the car and drove off. Sirius left the bushes and ran. He couldn't keep up with the car but got the general direction they were traveling. He found an out of the way phone booth and looked up St. Theresa's and started running again.
When he located the hospital he stopped. He needed to find out how Harry was, how long he would be in the hospital and where he would go when he left. He lay down by a fountain and was trying to think of a way to get in when he heard a child's laughter. He looked over the rim of the fountain and saw some children throwing coins into the water, their mothers were chatting on a bench behind them. He put his front paws on the wall and looked. The floor of the fountain was covered with coins and this gave him a couple of ideas.
Sirius slipped over to the hospital and walked around it. He had made it about half way around when he found what he was looking for. A couple of healers were sitting outside talking. He crept as close as he could and lay down to listen.
He had been laying there for hours and was about ready to go find something to drink when his waiting paid off. The nurse he had seen in the dream stepped out with another nurse, "I hope that little Potter boy wakes up soon. This is the fourth day and no response. I wonder how he fell so badly."
The other nurse said, "I've been wondering if he wasn't pushed. I don't like his Aunt and Uncle, I can't put my finger on it but I keep getting a bad feeling about them."
The first nurse said, "His vitals are always a little worse while they're here. It's like it stresses him for them to be around. I hate leaving him alone with them."
After the nurses went inside Sirius left the bushes and went in search for something to eat. He found a restaurant not far from the hospital. He moved to the alley on the side and started looking through the bins. He found some edible bits and sat down. While he ate he was thinking, I need to find a safe place for us to live, I will probably need some outside help and I need a wand. Harry will need medical attention so I'll need a healer.
As he was thinking a couple of wizards appeared on a spot about ten feet away, Sirius thought he had been caught. But they just walked away without looking back. He breathed a sigh of relief and moved farther back into the alley.
At night fall Sirius left the alley and went back to the Hospital. The park with the fountain was dark so he walked to it. He jumped into the fountain, changed into his human form and started scooping up coins. When his pockets were full he transformed back to his dog, hopped out and trotted off.