Mid-Columbia Fire and Rescue responded to a house fire near East 8th and Harris Street just after noon Thursday.  MCFR officials indicated initial responders arrived to find fire at the back of the structure on 102 Harris Street was quickly spreading into the interior of the house and attic space.  No one was home when the fire broke out, and no firefighters were injured fighting the blaze.  A cat was rescued from the fire and was taken to a veterinarian for evaluation.   MCFR crews received assistance from their volunteers along with the Dallesport-Murdock Fire Department.