How one came, as was foretold, to the City of Never

From Dunsany's How one came, as was foretold, to the City of Never:

"But when they came to the heights that venturous rider saw huge and fair to the left of him the destined City of Never, and he beheld the towers of Lel and Lek, Neerid and Akathooma, and the cliffs of Toldenarba a-glistening in the twilight like an alabaster statue of the Evening. Towards them he wrenched the halter, towards Toldenarba and the Under Pits; the wings of the hippogriff roared as the halter turned him. Of the Under Pits who shall tell? Their mystery is secret. It is held by some that they are the sources of night, and that darkness pours from them at evening upon the world; while others hint that knowledge of these might undo our civilization."