Lost Pet: Marnie and/or Blondie

Circumstances

Marnie & Sister, Bella, dug a hole under fence after I left for work.  Between 5:30A - 8:00A she got lose.  Bella is home.  She's very timid of others, loud noises.  Inside dog & is not used to cars or streets.  Last 2 times she's gotten out, she was located cowering in the bushes.  Goes by Marnie and/or Blondie.  Duncanville, TX.  Cross streets E. Center St. Freeman St. 3 streets come together right at the light.  Several schools are across from the house.