Snake Ecscaped Help me Please

[Snaake]

On May 8th I got a pet Arizona Mountian King He was. Baby and not even a week later he ecscaped he isn't use to me he never even ate when we had him
It's been 6 weeks and we haven't found him although last night in my room I hear something squeak across the wall I though it was my tortoise but he was asleep I looked in my gopher snakes cage he was asleep all me my pets where asleep even my lizards and turtles
My beds a loft I have a vent close to the ground leading to the furnace in my laundry room I have a way into the wall I do have a baby puppy but she doesn't kill snakes when ever she goes on walks and sees them she never attacks them

So tell me where you've found urs in ur house and methods I'll keep u guys updated