Answer:
"Then the Eldest Magician. Give me the scissors!' "
Explanation:
The sentence "Then the Eldest Magician. Give me the scissors!" from the given excerpt most aptly illustrates the author's key intent or reason for writing the fictional work of childhood literature 'The Crab that Played with the Sea.' This sentence educates the readers about how the crabs were turned so small in size due to their excessive pride and disobedience. Thus, this informs the reader about this purpose.
