Greedy, Cruel Aunt in James and the Giant Peach

Puzzle 1 of Things to be Grateful For Hard Pack

Question is: Greedy, Cruel Aunt in James and the Giant Peach

and the answer is: SPONGE

Word Meaning:

SPONGE — (countable) Any of various marine invertebrates of the phylum Porifera, that have a porous skeleton often of silica.

Definitions from Wiktionary.