Authors note: I did some research and found there were hardly any doctor who/Downton abbey fanfics and even less that had both the ponds and S/B so I wrote this the alien is completely original I hope you enjoy this story
Puppy
In the TARDIS
Amy was in her and Rory's bedroom flipping through their 12 photo albums when she found the note it read 'TARDIS in Buckingham palace' she raised her eyebrows slipped the note in her pocket then she heard the Doctor bellow " AMY POND TO THE CONTROL ROOM I REPEAT AMY POND TO THE CONTROL ROOM", she got up, trudged along the corridor and in to the control room. It was chaos Rory was holding on to the railing with what looked like a saucepan on his head whispering to himself the Doctor had things scattered everywhere "Doctor what is going on and why is Rory wearing that saucepan as a hat" the Doctor threw his friend another saucepan and said "Se… I mean the TARDIS is being stubborn she keeps dragging us back to a unknown point in time definitely earth but the question is where and when" "that still doesn't explain why my husband is wearing a saucepan on his head" but the Doctor wasn't listening he was talking to his TARDIS again "come on dear could you just tell us WHERE you're taking us" muttered the Doctor "OH JUST TELL HER" yelled Rory "OK um Amy we are going to….. umm crash land so get down and put that saucepan on your head."
Meanwhile at Downton Abbey (Sybil)
Sybil opened her eyes sat up and reached for the bell, then she realised that it was Saturday and that she had planned to go on a drive with Tom so she dressed quickly and ran down to collect the picnic before she was missed at breakfast. To her surprise the house was silent she looked at the clock it was seven already the servants would have been up and making breakfast but Mrs Patmore and Daisy were both missing from the kitchen. Sybil grabbed the picnic basket, called Isis and made her way out of the back door.
In the chuaffuers cottage
Tom was woken by a knock at the door "alright William I'm coming I'm coming" grumbled Tom pulling on his dressing gown. To his surprise it was not William standing at the door it was Sybil "Tom I'm so glad you've not gone too" she said giving him a hug "what are you talking about Sybil of course I'm not gone" said Tom "everyone's gone from the house Ma ma ,Pa pa, my sisters and all the servants too" "I'd better get dressed would you wait downstairs for a minute" he said flying upstairs. When Tom was dressed the two of them walked to the garage. Tom looked up at the sky in horror he shouted "SYBIL LOOK OUT "as he pushed her out of the way ,when they picked themselves up off the floor they saw big blue box right where Sybil was standing