Read the stanza from "The Raven" by Edgar Allan Poe.
And the Raven, never flitting, still is sitting, still is sitting
On the pallid bust of Pallas just above my chamber door;
And his eyes have all the seeming of a demon's that is dreaming,
And the lamp-light o'er him streaming throws his shadow on the floor
And my soul from out that shadow that lies floating on the floor
Shall be lifted-nevermore!
Which line of the stanza contains an allusion?