“his stomach dropped” what type of literary device is this?

c (: when ulrich considers throwing georg the flask

b. and i with my fighting heart, i thought at

first / to steal up to him [the cyclops].   the cyclops’ actions first odysseus to take

action after killing his men and trapping in the cave revealed his intent of

doing them harm.   that is why odysseus

blinded him to enable him and his men to escape.

very interesting story but where is the question what is actually a question i don't understand

because he was killed by the black arrow.