Thump! The Doctor wobbled into the TARDIS, a two foot high stack of cardboard boxes filled with junk teetering in his hands. You know what they say, one man's trash, another man's treasure. In this case treasure was hardly the word, and neither was trash. It was an eclectic assortment of bits and pieces the Doctor had amassed over the years, taken directly from his bigger-on-the-inside useful-things-for-a-TARDIS-emergency cupboard. It was fair to say after 900 years he had...quite a collection. Dumping the box on the floor, he lay down on his back, sticking his head beneath the console.

"I'm just going to try reattaching the...." he trailed off as he realised there was no one there to listen. It was just him and his box. Sighing, he held up his hands and began to unscrew a panel. He was interrupted by the TARDIS alarm. It wasn't the Cloister bell. In fact, it was an extremely rare version of his normal alert. So rare that he couldn't quite remember what it meant - like when you set a different ringtone for different people, but forget who has which ringtone. He sat up abruptly, and thwacked his head hard off the metal. Oof. That hurt. The bell continued to ring, taunting his curiosity as his mind tried to dredge up the meaning of this particular notification. It was either....swimming pool malfunction, rabid duck on the loose on Earth, or..... Ah. Once he looked at the screen, it all made sense. Of course he wouldn't hear this alarm very often. It was the regeneration energy signatures alert. Somewhere in his immediate vicinity - baring in mind the universe is mindbogglingly huge, so this could mean anything from within 10 metres to within the nearest solar system. In this case, the latter -  someone had regenerated. He zoomed in on the planet. Earth. Somewhere in Nepal, a blazing trail of regeneration energy had been released. But who could it be? He had seen the Master die recently, and had witnessed the cremation himself. He couldn't still be alive, could he? Was this some past or future version of the Master? Or of himself? Or was it someone else entirely? Another Timelord who had survived the devastation of the time war? The Doctor hardly dared to hope as he pulled the lever, his heart in his mouth.

"Allons-y" He shouted, partly to himself, partly to his box, and partly because why not. Why have a catchphrase if you're not going to use it?