although founded in the marvellous, is true to human nature and to
itself. Truth to Humanity, and harmony within itself, are almost the
sole unvarying essentials of a work of art. Even _The Rime of the
Ancient Mariner_--than which what more marvellous?--is true in these
respects. And Shakespere himself will allow any amount of the
marvellous, provided this truth is observed. I hope my story is thus
true; and therefore, while it claims some place, undeserving of being
classed with what are commonly called _sensational novels._

I am well aware that such tales are not of much account, at present; and
greatly would I regret that they should ever become the fashion; of
which, however, there is no danger. But, seeing so much of our life must
be spent in dreaming, may there not be a still nook, shadowy, but not
miasmatic, in some lowly region of literature, where, in the pauses of
labour, a man may sit down, and dream such a day-dream as I now offer to
your acceptance, and that of those who will judge the work, in part at
least, by its purely literary claims? If I confined my pen to such
results, you, at least, would have a right to blame me. But you, for
one, will, I am sure, justify an author in dreaming _sometimes_.

In offering you a story, however, founded on _The Second Sight_, the
belief in which was common to our ancestors, I owe you, at the same
time, an apology. For the tone and colour of the story are so different
from those naturally belonging to a Celtic tale, that you might well be
inclined to refuse my request, simply on the ground that your pure
Highland blood revolted from the degenerate embodiment given to the
ancient belief. I can only say that my early education was not Celtic
enough to enable me to do better in this respect. I beg that you will
accept the offering with forgiveness, if you cannot with approbation.