regular footfalls. Suddenly we heard a distinct snap in the hall
below. We instantly recognized the bolt of the front door, and
simultaneously we sprang from the bed. _It_--whatever _It_ was,--was
going. We ran across the room, hearing, as we went, the sound of the
footfalls on the stone walk outside, which led from the door to the
street. We rushed down-stairs and alarmed the house. The front-door
was found open, but no trace of our unseen visitor remained, although
the neighborhood was carefully searched. Investigation showed that
entrance had been effected through a dining-room window. But the
silver was untouched; nothing had been disturbed, although the house
contained many valuables, and it was evident that none of the
sleeping-rooms had been visited. It, whatever it was, had entered,
passed up the stairs, spent the night pacing to and fro in the upper
hall, and then, just before dawn, had departed as strangely as it
came.

"'Who or what it was, we never knew. The only possible solution was,
that it might have been some somnambulist; and, in that case, it must
have been some acquaintance who bad been in the house in his waking
moments. But even this solution seemed unsatisfactory, and finally
Kate and I gave up trying to solve the enigma, content to let it rest
as the mystery of our Unseen Visitor.

SIBYL WARRINGTON.'"

"Oh, Sibyl! you never told us anything about it before!" exclaimed
Gem, who had listened with breathless interest. "Is it all really
true?"

"Entirely true," replied Sibyl; "it is an exact description of what