After a thorough debate with your inner self, you decide to not call up the mobilization.
868 AD, Spring
An exhausted messenger arrives at your court.
"My liege, one of the governors reports that a thousand or more horsemen, led by a woman clad in horned helmet and furs of exotic beasts is riding towards the capital!"
Another messenger arrives few hours later.
"My liege! Lord Keil, governor of the city of Raenna just few days west of here, wishes to report that Queen Tomyra herself with a large entourage of horsemen is approaching the capital and have been given fifty Luathbas horsemen as guides.
868 AD, Next Morning
Reports continued to pour in thorough the night and by the morning, Queen Tomyra is at the gates to your Palace! Her thousand plus some horsemen have all set camp near the palace and are tending to their horses, not obstructing anyone coming to or from the palace.
Her male slave arrives to bring you a message - he kneels on his both knees and smooches the floor of your throne room.
"O, King of Luathbas! My mistress wishes to see you, as you have invited her to your castle, and thus she has come." The advisors and captain of the guard quickly convene on the side.
As for Queen Tomyra...
A) Let her into the throne room.
B) Go down to her.
C) Refuse her entry.
As for your guard detail...
A) Tell them to return to their stations, keep calm and be polite.
B) Amass as many as possible in the rooms adjacent to your throne room.