Once there at the tear, they explained to Harry what would be happening and assured him even if he did shrink it would only be painful for milliseconds a full regeneration can take only a few seconds after all and he wouldn't be going through that even though that actually was very painful for the few seconds it lasted.
It took them only ten minutes before they dragged his unconscious but fully Timelord DNA back into the TARDIS and as the Doctor sent her into the vortex the Master looked after Harry, he had shrunk by about a year physically although he actually looked healthy and had a slight tan now that he was a full Timelord.
As soon as Harry tried to open his eyes, he was violently sick all over the floor near the door where he had been sitting until he was brought back into the TARDIS, as soon as he tried to open his eyes, he had to slam them shut and then was spectacularly sick, he could see all of time in both directions with all of it alternate timelines, it was overwhelming. It took a good six months of staying in the time vortex before Harry could cope with the slightest change in the timeline. It took another twelve months before he could cope fully, having seen time in the Doctor's head was far different from seeing it in your own head luckily, he found out that occluding helped.
It took two full years before Harry could cope with all of his alterations of becoming a timelord then he went to visit the untampered schism that was on another planet and not controlled or rather caged by the timelords. He didn't know if he stared there looking into it for hours or just a few second before he bolted for the TARDIS.
Just under a week later he finally left the comfort of his rooms and found both older timelords in the control room although he had found out that even though the Doctor trusted the Master to some degree, he had locked him out of everything bar the bare basics so he couldn't steal the TARDIS again, Harry wanted to laugh when he had found that out. As he had been told his mother and then him, when he heard them, found some of his father's plots were really funny all just so the Doctor could dismantle them at the right moment.
"I'm The Son!" He spoke looking at the both of them. He knew it was his name and he knew that he would be asked the son of who just like the Doctor got Doctor who. He didn't know whether to be happy or annoyed with the name but he also understood the meaning behind it, he was also the Son of something else, and that was how he was treated by them, the only attachment in the multiverse. The two Timelords smiled warmly at him with pride in their eyes his father opened his arm and Harry ran into them the Doctor turned and also hugged him.
"We will take care of you now Son you don't have to worry but just as you know I'm Theta and you father is Koschei you will always be Null to us in private just as you were named as a child of time when you were really young." Harry just nodded his reply
"Now I assume you want to age a bit more before returning to earth and Koschei did promise to show us some of the places he helped so why don't we go and visit them all for a while until you're more comfortable in yourself we will also continue to teach you as we have, I know you've caught up to the tots your age but you still have a lot of learning to do even if you dad showed you how to pilot the TARDIS because he can't."
"He did manage to help save that planet though after he had done it and I brought her back seconds after we left then let the TARDIS feed you all my memories of what we did!" Argued Harry, or Null as his two Timelords had taken to calling him in private, from within the hug defending his father he really had helped, he had saved an entire civilisation and they would never know, that's how much he had changed now the drums were silenced and he could think. Harry had taught them both occlumency, it allowed him to remove the shield from around his father's mind for a month after they had Mastered it but also showed he really was different he had reapplied it after the month only because as he explained mind shields could drop and it was a safeguard, he couldn't lose what he had not to madness he loved both men very much.
"I know Null and you know I was very proud of you both for what you did especially Koschei, if I didn't he would still be tethered to you not free I just don't want him stealing the TARDIS imagine if someone stole SATURN from you" Theta explained gently. Harry winced in his father's arms losing SATURN would be like losing part of himself, in the end he nodded in agreement his hopefully future stepdad had a point.
"Okay so where are we going?" Asked Null looking up into his father's face.
Koschei smiled, ruffled Null's hair and began to explain the first place he had ever saved he explained about the monsters that had the whole planet under their thrall how he had used his own psychic powers to bind all the citizens to his mind to keep the monsters at bay, in return he had turned their home into a paradise for them, he made sure they had everything from state of the art health care to education and even a full tourist attraction for them to earn money the only thing he had requested was to be able to return whenever he wanted to relax. Something they were more than happy to do for him after everything he had done for them. He explained to the Doctor that if the link was cut for any reason the thrall would fall all over them and they would be nothing more than puppets to the monsters, he advised them to walk around on their own or where he couldn't hear and ask them what they thought of the agreement, if the Doctor or his son could find a better way to help them then he would happily assist, the only reason for the binding was to prevent the monsters return there was no way to kill the monsters though. None that he could find, even if they could he thought the whole planet would not agree to it though, so it had to be their decision, or they weren't going. He didn't tell them, but this was a planet that was one of his greatest joys it really was a relaxing planet and he wanted it to stay that way. Both his son and Theta agreed immediately so the Master gave over the time frame and coordinates to the Doctor for the TARDIS to re-materialise.
As soon as they stepped out, they were met by an honour guard of six people suddenly twelve more appeared when they saw three people instead of the usual one.
"Master you have returned and with guests!" exclaimed one of the …People? The race looked avian in appearance in fact they looked like big bird from the children's show. Feathers all over them a beak for a mouth, slit above the beak for the nose and a crown of feathers on their head, all the ones present, were all respondent in dress and colour, the dress was the same but the colours of their feathers were extraordinary, not one looked alike.
"Yes. Thank you for the warm welcome as always, the tot between us is my son and the man holding his other hand is the Doctor we were hoping we could stay for a while and the Doctor and my son have a lot of questions for you." Here he held up his hand when he saw the looks given to the Doctor.
"Both have agreed only to terminate the entire psychic connection to you all if it can be done safely and without ANY harm to anyone on this planet!" Here he looked to his left at the Doctor and his son.
"Isn't that right you two?" Both nodded and answered in the affirmative.
While the Master caught up with the latest news and things going on, on the planet he let the Doctor go off with his guard of six they were there to protect him and ensure he was undisturbed in anything he wanted to do, which seemed mostly to try and find the gutter trash, of which there was none. or find out if the Master really was being benevolent and not just enslaving them a different way. The Master refused to move from Null's side however he would turn his view from Null and whoever he wanted to speak to and then Null would cast a silencing spell around them keeping him out, well he did for the first day by the end of that he was smiling in happiness and contentment knowing his dad had done good here an entire civilisation lived in freedom because of him. The next morning was a shocker for the Master.
Barging into his room and flinging himself on the bed Null had his father awake in less than a second in fact the Master caught him as he was flying at him and dropped him on the bed next to him Null was all smiles and happiness.
"Come on dad up, I want to see some of the entertainment around here that you helped create I want to go on all the rides and adventures offered." Demanded Null calling him Dad properly for the first time without anything but love in his voice it caused the Master to choke up for a second, never believing that he would get called that, until then Null had mostly called him father. He was also acting more like the tot he was which he was glad to see. Not one to deny him anything he told him to order room service for them both while he showered and dressed for the day, he had his own wardrobe here and Null had found out he had ordered a wardrobe for him as well when he got to his room all in different sizes for when he grew obviously his dad wanted them to come here often by the look of things.
In less than half an hour they were on their way to one of the many buildings to start on the rides, they had decided on the way, a day of rides followed by a day of adventure, Null informed him he was giving the Doctor today then he was joining them whether he liked it or not. They were here to relax and allow them to SEE the good his dad had done not start another Spanish inquisition. He understood where he was coming from the Master had done this with the drums in his head he wasn't in his right mind and even though he thought he was helping he might not have been but Null had seen this place and what it had taken his dad to change it into what it was now, obviously the Doctor still hadn't looked into the Masters head or the other way around he had hoped that they would of by now at least. And people use to call him stubborn.
True to his word he gave the Doctor that one day that he spent alone with his dad and then he dragged him with them on their first adventure offered here. A wildlife reserve that had a mass of endangered animals within it allowing them to grow while controlling any cross breeding it was beautiful to see and took them the whole day, Null actually came away with a lot of new information from that. It was shocking he hadn't seen half of the creatures in there, yet some were so old and some from the future that were going extinct, it was explained that this was the only place they would be allowed to move around in they would never be exported to help with re-population this was done to stop them going extinct not help in the future.
Over a fairly long period of time they experienced everything from home grown buildings holding unlimited amusements all bio-formed to fit with the surroundings to futuristic building that only the most advanced races could build in this time, something that this planet was even though they never let on. They lived in harmony with the planet instead of trying to dominate it like other civilisations did, even earth.
When it was actually time to go, all three were not ashamed to admit they could have stayed longer but there were other places to go and other things the Doctor needed to see.
From there they moved on to the next planet, it seemed the Master was showing them in the order of which he thought as the most precious to him, they had spent nearly six months at the holiday planet going all over it seeing everything that world had to offer. The others were roughly done over three months each, again going all over the planet they were visiting and finding out what his father had done for each one.
They had just finished up the latest planet and had decided on a night of sleep in the vortex before they moved on. Though this next place was going to cause a lot of problems for them not that they knew it at the time they went to sleep.