How to locate a dead mouse in your house
If a horrible stench has emerged in an area of your house, check for the following evidence of a mouse invasion:
Tiny paw prints, typically found along the trimmings of wall edges
Sunflower kernel-sized droppings, typically found in small clusters – likely dry and dull brown if the rodent has died
Streaks along wall edges and kitchen countertops
If there’s no evidence to point you in the direction of an impromptu mouse graveyard, follow your nose to the most concentrated area of the stench. If there’s still no sign of the corpse, it could possibly be in an air duct, a wall cavity, the attic, the crawlspace or in the sealed underside of a kitchen counter.