Not to mention all of the doors and windows appear to be undamaged. You have no idea how they got in and now you have to dig around in case there's a tunnel bee

Not to mention all of the doors and windows appear to be undamaged. You have no idea how they got in and now you have to dig around in case there's a tunnel been dug into the basement, a secret hatch on the roof, do they have a spare key cut somehow - how did they get access to the key?