Any help is greatly appreciated!
cheers,
Meshon
And to add a little spice to the soup: This is going to happen in Zilargo, and they already fear the little ones from what they've heard so far.
Unless your player tries to disguise himself as a regular human being, I'm pretty certain, they recognize each other on a subliminal level as "one of a kind"; but I wouldn't say that they know about each other's allegiance by sight alone - obviously the appearance of the NPC as an ambassador might tip-off my player.
I have no idea how my Kalashtar Player will react to an Inspired (including psionic guards); the ambassador will definatly try to provoke an aggresive behavior but will remain calm and defensive herself. She doesn't know that he's around yet, but having him restrained, locked away or (even better) dead will suit the DD's plan perfectly.
At least in publice.
The Inspired won't actively attack a Kalashtar who is having a meeting with one of their ambassador's based entirely on Race- it would look bad for them; and the Inspired care about how they look to the Khorvairian masses. They can wage the publicity war; the war of information; the slandering- thats all fine. But to actively attack someone based on race is another step.
As for the Kalashtar- i suppose that depends rather fully on a) Your player and b) is the Kalashtar aware that killing the Inspired Ambassador won't actually hurt the Quori? Not all of them are (those raised outside of Adar especially might not be aware).
Its much more likely that the Kalashtar would get sized up in the meeting, his friends marked for decontamination and extermination by "unknown forces" and assassins or thugs hired to take them out at a later date. Or the Quori might sponsor the group just to watch the Kalashtar squirm as he tries to figure out what the diabolical plan is and how to stop it- all while being distracted from the true goals of his enemy. OR if you want to run it a little bit more Inglorious Basterds esc- they fight, things blow up, enemies die- and the Kalashtar goes underground (or doesn't make it out).
The Inspired may be immeasurably evil, but they are also immeasurably patient. They spent centuries taking control of Sarlona. I think their plan for Khorvaire is different (they already have Vessels that they can import, and they don't need to cause wars to slowly spread the Path of Inspiration), but whatever the details, they probably don't benefit if the public gets the impression that the Inspired are violent. The Inspired will play it cool.
Different factors ought to keep the kalashtar in check. They may not care about PR like the Inspired, but they can't go around attacking the Inspired without getting in serious trouble and undermining their cause. Remember that the quori aren't even known to most people of Eberron. A kalashtar can't kill someone and claim, "He was Inspired!" without simply seeming a madman.
Finally, what's the point of getting hostile? Both know that the other guy is, in a way, immortal. The Inspired, if killed, simply claims another empty vessel. It might irritate him to have to grab another body, but big deal. An individual kalashtar, on the other hand, possesses an individual identity, but still shares a quori spirit with hundreds of siblings, so his death won't change the game.
The Inspired Ambassadors are usually not engaged in the war against the Kalashtar on anything other than the Khorvaire Charm Offensive. They might mention the meeting to their Quori spirit next time it stops by to shunt out their conciousness and that may get passed down the line to the Dreaming Dark, but the ambassadors themselves are usually not involved in stamping out the Kalashtar.
If they meet plain-faced, they will probably recognise each other's nature and their mutual emnity.
For today, however, if the PC's request is of mutual benefit, the relationship doesn't have to be outright antagonistic, even if it chafes the Kalashtar to get help from his immortal enemy.
(There are even Quori who feel the subversion of Khorvaire is unnescessary, so who knows, they may even become unlikely allies in the future.)
Once you bring personality into the equation though, a lot of that may go out of the window.
A hot-blooded kalashtar barbarian might flip the table over during discussions or a sadistic Inspired may toy with his guest as far as he is able to do in secret or frame the PCs for the murder of his aide, just for a laugh.
The potential for it to go any which way is quite exciting
cheers,
Meshon