With such doubts, the not so young second son waved his hand.
His steward briskly approached, "Your Highness..."
The place was crowded, and it was impossible for the second son to speak up here, so he led his steward into a side hall. Watching the old housekeeper of the mansion approach, he pressed a mechanism beneath the wall and set up a Barrier to isolate the interior sounds from the outside.
After he withdrew, the second son spoke up, "Is there a spy of ours with Duke Algin?"
"We used to have one, but after Sir Durin fell out with us, they were all sent back," the steward paused briefly, "Just now, I noticed that Duke Algin received a letter delivered by his messenger, are you worried about something specific?"