[M113]

mysterious disappearance

The vanishing of insured property in an unexplained manner. Previously there were disputes under theft policies as to whether property mysteriously lost had or had not been stolen. To avoid contention, insurers stated in such policies that mysterious disappearance was presumed to be due to theft. Mere disappearance of property, such as an article dropped from a boat, is not covered, since the disappearance is not mysterious.