Dahl's scrawls, Dickens' chickens

Chuckle-inducing bit from The BFG:

"And that's how you taught yourself to write?" Sophie asked.
"I is reading it hundreds of times," the BFG said, "and I is still reading it and teaching new words to meself and how to write them. It is the most scrumdiddlyumptious story."
Sophie took the book out of his hand. "Nicholas Nickleby," she read out loud.
"By Dahl's Chickens," the BFG said.

-- The BFG, Roald Dahl