Praying that Wally will show up. Don't give up hope. If you are remodeling, could he have gotten in anywhere he shouldn't have? I ask this because my sister had her closet door open and her himalayian cat somehow managed to get in between the wall and the insulation! It took hours to lure him out. Now she has to be careful that she never leaves that door open because he always wants to go back there. Prayers going up!!!