watch 01:22 The Loop (TV) Do you like this video? Martha Mealy Worm Item Type Book Owner D.W. Read Appearances First Appeared (cartoon) "Arthur's Knee" Martha Mealy Worm is a book that D.W. once wanted Arthur to read to her when he was grounded. Appearances Arthur 214b. "Arthur's Knee" References ↑ While the episode visually shows the last two words being written in all capital letters, closed captions do not do this. Retrieved from "https://arthur.fandom.com/wiki/Martha_Mealy_Worm?oldid=245832" Categories: Books A to Z Community content is available under CC-BY-SA unless otherwise noted.