The mystery remains over who sent the letter to the academy members.

Yet while the mystery remains, it does not diminish the book's power.

It shows you everything about life for nothing, but the true mysteries remain.

But the mystery remained: how had I discovered the truth of the matter at all?

Though a mystery remains as to why he has not yet come forward about the incident.

Through all that, however, two mysteries remained: How she set off the fire and why.

But the central mystery of this period in Canadian history remains.

If a mystery remains, it is a minor one, according to two people involved.

A mystery remains as to where the quilt is today.

But one mystery remained: the limited access nature of the road.