Don't get alarmed but I've taken the liberty to be a tad candid with him.
Men darted through the hall in a flurry of activity that alarmed him.
Note that the little critter happens to have a very long tail, and it is not detachable - something to keep in mind if you're easily alarmed.
In 1494 he was again in the Netherlands, where he led an expedition against the rebels of Gelderland, assisted Perkin Warbeck to make a descent upon England, and formally handed over the government of the Low Countries to Philip. His attention was next turned to Italy, and, alarmed at the progress of Charles VIII.
This capture so alarmed the national government that a force was sent under the command of Roca to put down the insurrection.