I've got to second Arry's feeling. Not that I mind being taken captive, it'll be fun and interesting, but it seems a little out of character that (in the cases of the guards, anyway) they were
all taken without a fight or even so much as a struggle or noise. It doesn't work for me that the Elves wouldn't have a guard posted, or wouldn't simply sense the presence of the
yrch.
Cap, I think this is something that can be taken care of with a simple edit. I certainly don't want to miss out on this adventure but...
I dunno. We're guards. If the Orcs captured the emissaries first it might make sense that we would surrender... but I trust your creativity and writing skills to make it plausible