To be fair, all the book lines left were probably among the harder ones, tricky in one way or another.
“Heaven swallowed the smoke.”
Beowulf, Seamus Heaney translation
“Just remember that, because I’ll be back.”
Han Solo’s response to Princess Leia’s “I love you” in The Empire Strikes Back novelization. In the movie, this line got changed to “I know.”
“I do not care whether you hold out a long time or not.”
Hallgerd to Gunnar in Njal’s Saga, after telling him that no, he may not have some of her hair to replace his broken bowstring, even if his life depends on it.
“The plague came out of nowhere.”
Opening line of lnhammer‘s “The Myrmiddons,” in The First Heroes.