A mysterious cave - kegs of blackpowder

[Mileni]

I did the puzzle with the torches in the mysterious cave, but I can't get any further because there are kegs of blackpowder which explode when I come close. Is there a way to get past them safely?

[Kreador Freeaxe]

Shoot them from a distance.

[Mileni]

If I click a keg of blackpowder when I'm holding a bow, it says: "You see a keg of blackpowder." How can I shoot it?

[Mileni]

Ok, thanks!