Missing cat in Edinburgh, Midlothian for sale

My little dark Tortie cat, Bear, went missing around 3 weeks ago after being terrorised by two tom cats and trapped up a tree for three days. I last saw her on about April 25th in the morning. On the Monday, a neighbour spoke to me about a large brown cat, dumped outside her garden in a builders white Hessian type bag. She buried the cat in her garden. I have been hoping and praying that Bear has gotten lost or someone has thought she was a stray and taken her in. I have had Bear since she was six weeks old and she is my baby. I am terrified that she was the cat dumped by whoever it was. If anyone has seen a small, semi long haired dark Tortie or taken her in, please, please let me know. I miss her so much, she is very trusting and affectionate and very pretty markings, quite distinctive. Any info will be very much appreciated not just by me but my two year old grandson who calls her every time we go out. Many Thanks. These two photos are the only one I have at the moment and they are Bear when she was a six month old kitten but it shows her markings off. Thanks Again for any help/info