Deravan saw that finally Robert and Backstab hit the golem, and smiled. Finally.... they would be able to hit that dang thing. He then noticed how the golem was going to run right now to flee. God... he attacked the group, and now think he can get away that easy.
"Where you think your going!? Your the one that attacked us!" he says as he then rush and slash at the beast, and actually hit him... quite a bit to say the least. Not exactly at the core like Robert seem to have done, but still did quite some damage. Deravan did hear the princess giggling.... Why was she so happy... Those things actually attacked the group first. Deravan was faster to move then them though. He just hoped that the group could take down the thing.... or if the thing runs away... have had enough damage to make it never attack anyone ever again.