Fantastic Four #193
"Day of the Death-Demon!"
April 1978, in collection
Defying Diablo's control, Darkoth warns the Thing against flying a doomed shuttle
reprinted in
*
44 Years of Fantastic Four
2005, in collection
(2005*)
*
Fantastic Four: Overthrow of Doom HB
2011, in collection
(2011*)
*
Marvel Digital Comics
no date
(no date)