The Doctor and Nardole half expected the Tardis to still be in pieces when they walked back through the doors.
To their surprise, not only had Missy completely reconstructed everything she'd taken apart, she had lovingly cleaned the entire room, polishing all the handrails so they gleamed.
"Don't stare too hard, your eyeballs may pop out." Missy chuckled lightly from behind them, before a serious edged leaked into her voice, "Actually I would avoid the main corridor leading to the swimming pool, I haven't got around to finishing up down there yet and your eyeballs may very well be at risk."
Shaking his head disapprovingly, the Doctor turned to face her, noticing that she was once again back in her 21st century, casual clothes. "Ok, you need to make sure that whatever you're doing on the Tardis, you're not effectively leaving booby traps lying around my ship."
Missy scowled irritably, "What's exploding eyeballs between friends, a little regeneration energy and we'll be good as new again."
Nardole raised his hand, "Erm, I won't!" He exclaimed, sounding offended.
Smirking, Missy slipped past them, "Don't worry, as long as you don't decide to go swimming without eye protection you'll be fine." Waving him off cheerfully.
"Where are we going?" The Doctor asked, gesturing to the clothes she was wearing, "Or are we staying on Earth again today?"
Nodding, Missy stuck her hands into the pockets of her leather jacket. "I want to do something I've never done before."
Tilting his head to the side curiously, the Doctor took a small step closer to her, "And what can there possibly be here on Earth that you haven't done yet?"
Smirking, Missy brushed past him, heading for the door, "Horse riding."
In hindsight, it hadn't been the greatest idea to follow blindly along with Missy's suggestion, the Doctor thought as he walked back into his Tardis, muscles aching.
Nardole was in a similar position, neither of them particularly well made for horse riding.
Missy, on the other hand, had loved it, she had marched straight up to the most violent looking animal in the stable they had gone to and hopped the gate into his stall.
The stable assistants had looked close to heart attacks before the Doctor reassured them, rather unhelpfully, that if she lost a finger she'd grow it back eventually.
To everyone's surprise, the demonic looking horse had loved the tiny Scottish woman who was leaning against his neck and cooing down his ear.
He hadn't hesitated to allow her to drape the saddle over his back, and despite the snap of his teeth towards his caretakers as Missy rode him past, he was perfectly behaved for the Time Lady.
She had been unhappy when it was time to come back, but with a sigh the Doctor had assured her that he wouldn't stop her coming back whenever she wanted to so she had perked up.
And then came the thirty-minute walk home, which consisted of her continued gushing over how handsome and sweet natured her horse had been. Which no one but her believed was true.
Missy skipped past them into the Tardis, heading off to her room, but when a chime from the console caught his attention, the Doctor called her back, a strange edge to his voice.
"What have you been doing?" He asked slowly, taking a breath and forcing himself to give her the chance to explain rather than jumping to conclusions.
Confusion etched on her features, she attempted to get a look at the scanner but he blocked it from view.
"Well how am I meant to tell you if you won't let me see what you're looking at?" She asked him, annoyance colouring her voice.
Stood behind the Doctor, Nardole took a peek at the scanner himself, but with the words in Gallifreyan he wasn't able to glean any further insight into what had the Doctor suddenly on edge.
"Tell me what you think you could have done and I'll tell you if you're right." The Doctor countered, wanting to see if she would be honest with him.
Missy seemed genuinely perplexed as she searched his face for any indication of what he could be so annoyed about.
"I don't have any idea what you're talking about." She told him firmly, "Perhaps one of the repairs I have done has had an unfortunate side effect and if it has then I am sorry. But I haven't intentionally done anything bad, I swear it."
Frowning at her sincerity, his eyebrows creased as he looked at her, "So you haven't been searching for the Rani?" He asked her eventually.
A sudden excited look gleamed in her eyes as she pushed past him to look at the scanner for herself.
"She is alive!" Missy cried out happily, "When I set it up to look I never believed the Tardis would be able to find her."
Knocked off balance by her shameless joy at discovering evidence of the Rani's continued existence, the Doctor righted himself from where Missy had knocked him against the console and came to stand at her side, "Ok, let me try again, why have you been searching for Ushas?"
"Remember we spoke about whether we thought she could be alive?" Missy told him easily, without requiring any further prompting, "I wanted to know for sure. There are so few of us left Theta, is it really so bad that I wanted to know that one of our best friends in the entire universe was still alive?"
Sighing, he shook his head, "No, I suppose it isn't. Although I wish that you had spoken to me first."
"Why?" Missy asked him, "Asking the Tardis to keep an eye out did no one any harm, and had no impact on our day to day lives. If you hadn't been here and it was me who first saw the alert then I would have come to get you straight away."
As her mind brushed against his, he felt the truthfulness in what she was saying, "Fine, you're right, I may have overreacted. So, what do you intend to do now that we know that not only she's alive but also where she is?"
"We go see her." Missy said, as if it was the most obvious thing ever.