DISCLAIMER: I own nothing
Read yo'. Whump enters.
As the Doctor disappeared into the TARDIS, Julian closed the plug back up again and unfolding his legs, placing the plug carefully on the table. He and Sherlock walked up to the TARDIS doors and saw the Doctor open a hatch under the main console and pull out a long coil of transparent wire and slotted a section on the end so it would fit into the socket. The Doctor walked towards the door, letting it out as he went. As they looked closer, they noticed it was in fact a hollow tube curled up into a coil rather than a wire. Julian and Sherlock parted for the Doctor to come through and he let out the tube along next to the other wires to the socket where plugged it in.
'What's the tube?' asked Sherlock. For once he felt a little intimidated; engineering and electrical was a subject he didn't know much about.
'It links directly to the engines. The tube contains some of the same energy held in the engines and simple electrical energy can kick up a reaction. Essentially it's a jumpstart.' He joked, picking up the plug Julian had rewired and plugged it in, quickly scanning it with his sonic to check it was right.
'Now… just stay away from the wires in case this doesn't work' warned the Doctor and then he flicked the switch. There was a small bang as a shower of sparks exploded from the socket and then more sparks flew from the bare wire stuffed into the extension cord. The lights in the apartment flickered for a moment and then returned to normal, the dim TARDIS lights brightening and its noise sounding a little closer to its normal sigh. The Doctor then flicked the second switch connected to the long tube. For a moment, nothing happened, and then a golden glow started to fill the tube. It started faintly from the socket, growing stronger and working its way along, leaving a golden trail twisting around the apartment. The three men stared as it slowly snaked its way towards the TARDIS, until the Doctor laughed and Julian joined in. There was something so pleasing about the tube of golden light, it made him feel very childish. They stopped abruptly as another shower of sparks flew off the socket, almost setting a stack of paper on fire.
'Come on, into the TARDIS! I don't know if this will last' called the Doctor. Sherlock hurriedly cleared anything flammable out of harm's way before following the others into the ship. By the time they had reached the main console, the light had filled the whole tube and the engines were filled with light but they remained still. Something was wrong. The Doctor frowned.
'It should be working, why isn't it working?' He yelled frustratedly. The background noise had turned into a whine as if pressure was building in the engines.
'The engines are overloading!' Shouted the Doctor. He danced around the console frantically trying to do something. Even though they weren't going anywhere, the TARDIS began to shake and the three men had to hold onto the railing around the console area for support.
'We need to turn off the jumpstart or everything will blow!' shouted Sherlock. At this the Doctor leapt down the stairs and ran for the doors to unplug it at the source. Julian immediately crouched next to the console, trying to pull the tube out where it was attached to the console and Sherlock knelt down to help him. However, before either of them could even get a grip on, the console next to them exploded, raining sparks everywhere. Julian was thrown backwards, the back of his head loudly colliding with the metal railing, knocking him out. Sherlock was thrown in the other direction and went skidding down the stairs, landing heavily at the bottom. Meanwhile the Doctor was blindly making his way to the socket. The coils of wire from the TARDIS had filled the apartment with smoke. His foot hit the extension cord and he went crashing into the wall. Coughing, the Doctor pushed himself up and felt along for the socket. Eventually his finger felt the switch and he flicked it off, pulling out the plug as well just to be safe. He heard the TARDIS falling silent and everything was quiet for a moment until the smoke alarm went off.
'Bit late' he muttered and made his way towards the door, flinging it open to clear some of the smoke. Sherlock groaned as he heard the alarm but stood up and walked over to Julian. His pulse was steady but he probably had a concussion. He looked reasonably light. Sherlock put an arm under Julian's back and another under his knees, hoisting him up and walking towards the doors. By this time the Doctor had flung open both the windows as well and was standing on the kitchen table, hitting the smoke alarm with a newspaper. He jumped down with a concerned expression as he saw Sherlock emerge with Julian.
'He hit his head but there's no blood that I can see' answered Sherlock before the Doctor had asked. Just then they heard a woman shouting from the stairs.
'Sherlock, what's going on up there? What have you done this time?'
'Mrs Hudson' hissed Sherlock with a sigh.