This verse contains a rhetorical question and may be restated in the form of a statement (so Good News Translation, Revised English Bible, New American Bible). See the comments on the similar-type verse in 1 Kgs 11.41.

The Book of the Chronicles of the Kings of Judah, which no longer exists, is mentioned fifteen times in 1–2 Kings as a source of information concerning several of the kings of Judah (see verse 19, which refers to “the Book of the Chronicles of the Kings of Israel”).

Quoted with permission from Omanson, Roger L. and Ellington, John E. A Handbook on 1-2 Kings, Volume 1. (UBS Helps for Translators). New York: UBS, 2008. For this and other handbooks for translators see here .