Since he is Captain of the royal guard, I would like to have Agaron fighting off a wave of the invaders, bottle-necking a certain staircase. Alas, the enemy made it through using other routes, cutting down the royal guards there. When Agaron ran back to check on the King, the nasty happened.

If that's alright I will happily write an excerpt describing that.

I think it'll be awesome to have Agaron cut off his valued braids with fetishes, each one symbolizing a deed, once he finds out he failed to protect the King... 

And then on to dishing out retribution and vengeance during the Role Play, to lessen the failure.