"Strange I should stumble across this chap," he mumbled to himself.
We can keep trying,” said Pilar, “and hope we stumble across it by accident.
He was the orfulest-lookin' cuss it was ever my fortin' to stumble across.
I only meant that of course they will stumble across each other in London.
Every now and then, though, they stumble across a real honest-to-goodness thrill, ...