The light is dim at best, as the strangely lavender twilight casts a faint hue down the manhole shaft. The shaft itself is deeper than perhaps even Azog had guessed, as he climbs for a full twenty feet before touching down. Lovecraft is quickly behind him, and as they descend the noise and fracas from outside the Labrador fades quickly.
As Howard steps off the ladder, something covers the manhole, presumably the manhole cover, darkness closes.
It is pitch black. You are likely to be eaten by a grue.