怪かい事じ

noun

mystery; strange event; mysterious affair

Refers to an event or matter that is puzzling, inexplicable, or eerie. Often used in literary or narrative contexts.

• その古ふるい屋や敷しきでは、夜よな夜よな怪かい事じが起おこるという噂うわさだ。

  Rumor has it that strange events occur night after night in that old mansion.

• 彼かれは数かず々かずの怪かい事じを解かい決けつしてきた名めい探たん偵ていだ。

  He is a famous detective who has solved many mysterious cases.