Stumble upon

Underneath a black cliff where the incoming tide smashed on the shingle, they stumbled upon the mail hood of Hrothgar's murdered vassal.

During the course of his looking into Abedin’s S.G.E. status, the senator stumbled upon an O.I.G. “criminal” inquiry, commenced in October 2013, about whether Abedin knowingly got paid for hours she did not work while she was on vacation and maternity leave.