Farmers across the country are being urged to help the hunt for Bella the lamb three weeks after she went missing with sheepdog Blake - who has now been found.
Collie cross Blake was returned to owner Natalie Haywood on Saturday by a local farmer who said she had found him wandering by a road two miles from where he went missing.
However, Miss Haywood has asked police to investigate whether one-year-old Blake had been kidnapped and freed in the meantime because he appeared fed and looked after.
Miss Haywood has not given up hope of finding Bella, now eight weeks old, who she took in from a neighbouring farm after the lamb was abandoned by her mother.
She said: "Bella is out there somewhere still and we are doing all we can to bring her home. If anyone notices a lone lamb, or is offered a lamb matching Bella’s description, please notify the police on 101 or myself on 07712 433249.
"It’s obvious that she is no longer in the woodland where she went missing. She may have been picked up and put in a field of other sheep.
"Any farmer who notices they have an extra lamb, or anyone who has been offered a lamb like Bella for sale should get in touch."
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Bella is described as a mule sheep, with a red-purple birth mark on the inside of her groin and who has not been tagged or yet had her tail docked.
As the hunt for Bella continues, Miss Haywood has been making up for lost with escapee Blake.
"It’s awesome! I’m still in shock he’s actually home following me around like he used to do.
"He’s doing wonderful. It took him a couple of days to fully relax but other than that he was our Blakey.
"After we got the phone call our friend drove down as he was closer and we met him there. He had already rang us and confirmed it was Blake.
blakey is back where he should be, with a little sister too! 😍😍😍😍😍😍😍Posted by Natalie Haywood on Saturday, 27 May 2017
"I didn’t even wait for the car to stop before jumping out. I’ve never felt such a rush of emotions.
"I couldn’t speak for talking. We’re all just so happy to have him back home!"
Bella and Blake went missing on Monday, May 8.
The hunt for the unlikely best friends was joined by dozens of volunteers including specialist sniffer dogs who combed several square miles of the neighbouring Thoresby Estate.