Peculiarity – noun; 1) the quality or state of being peculiar – adjective – different from the usual or normal

From the story “Young Goodman Brown” by Nathaniel Hawthorne “It was all as lonely as could be; and there is this peculiarity in such a solitude, that the traveler knows not who may be concealed by the innumerable trunks and the thick boughs overhead; so that, with lonely footsteps, he may yet be passing through an unseen multitude.” (paragraph 8)

Now I understand that he know it’s going to be a lonely trip but something special is waiting ahead of him after he pass through this road.