Puzzled over the Kid's mysterious behavior, Morgan climbed to his feet at last and went inside.

Obviously others in the neighborhood would now suspect an illegitimate birth as one possible reason for Peggy's mysterious behavior.

It occurred to him that her irritation was related to her mysterious behavior of the previous night.

Of all the possible explanations for Saravio's mysterious behavior, this one was the least expected.

If they refuse, then we shall be obliged to break open the door and demand an explanation of their mysterious behavior.

But the old man's mysterious behavior was starting to be pilked up by the other pilots.

Report any mysterious behavior to the following police number.

That mysterious behavior was explained as they got into 917.

While preparing to dig her nest, the female sometimes exhibits a mysterious preliminary behavior.

Whatever the reason for her mysterious behavior, it worked.