What resounding refrain do we hear throughout the poe master piece “the raven”?

Nevermore

Explanation:

The raven calls out multiple times throughout the poem, "Nevermore".

no its Lenore the raven keeps Calling the name Lenore BC I remember reading this book trust me it lenore

the author develops a cold, and scared tone. making the reader shudder with fear, and suddenly become cold. i'm guessing that he's writing a scary novel, or maybe about a chilly december night.

mark twain, real name samuel langhorne clemens, was an american writer, humorist, entrepreneur, publisher, and lecturer. among his novels are the adventures of tom sawyer and its sequel, the adventures of huckleberry finn, the latter often called "the great american novel". wikipedia