Seemed in its silence as if it knew
What, any moment, might look through
A chance gap in that fortress massy:—
Through its fissures you got hints
Of the flying moon, by the shifting tints,
Now, a dull lion-colour, now, brassy
Burning to yellow, and whitest yellow,
Like furnace-smoke just ere the flames bellow,
All a-simmer with intense strain
To let her through,—then blank again,