Quick summary: a tablet written in Hittite, from a likely vassal to their king, recounts how Attaršiya [Atreus?] of Ahhiyawa [the Achaeans] and his sons attacked Taruiša [Troy]. And at the end there’s a fragment in another Anatolian language, Luwian, saying the following:

wa-ar-ku-uš-ša-an ma-a-aš-ša-ni SÌ[R
wrath.ACC god(dess).VOC? si[ng

So roughly “Sing, oh goddess, the wrath…”

This is pretty much how the Illiad starts in Greek:

μῆνιν ἄειδε θεὰ Πηληϊάδεω Ἀχιλῆος
mênĭn áeide theā́ Pēlēïádeō Akhĭlêos
rage.ACC sing.IMP goddess.VOC Peleus.GEN Achilles.GEN
Sing, oh goddess, the rage of Achilles [son] of Peleus