Lyric discussion by kaymay 

Cover art for Lullabye lyrics by Remus Lupins, The

God I'm such a sap. This song makes me really sad...

Basically, it's Remus (and Dora) singing a lullaby to Teddy, making promises they can't keep. They promise to be back when the battle's done, but ...

I particularly love the lines: "If many years from now you hear this song Know I'm next to you, know I'm never gone, oh boy"