A diplomat of a foreign country resides in the current city. Now he wants to go from the townhall to some event a couple of blocks down the street. How would you protect him, in case a group of highly skilled rogues and sorcerers wanted to kill him on the way?
I was thinking of a steel-plated carriage and a couple of city guards around it. The people in the city should not really be restricted in ways of locking down the street, in fact, they should not even register that inside this carriage is a "very important person".
What I'm afraid of is, if one of the sorcerers/wizards/whatever fires a scorching ray, a fireball or some similar magic weapon. So my main question is: Could someone who has to protect the VIP cast something like "dispel greater magic" on the carriage even when moving, and does this protect the diplomat? What suggestions do you have?
BTW: Teleporting the diplomat would be "too magical" for the setting I am thinking of. The magic level should not be higher than what a level 7 sorcerer/wizard is capable of.