Therein lays the problem, or one of the problems at least.

He was a dangerous man, and therein lay his appeal.

Of course, the ladies on the ship were supposed to be different, and therein lay the problem.

Indeed Law determined not to try to look like a great man and therein lay the secret this success.

His plan had been ambitious to a fault, and therein lay the problem.

But in a sense, the destination was itself the back way, and therein lay its appeal.

Therein lay her chance, though she hadn't a clue how to use it.

Therein lay a new way, and the risk to him was great.

Even so, each of them was a unique individual, and therein lay the danger.

But the store did use a few white ones, and therein lay the problem.