Rudra had suspicions about a total of 12 people present in the meeting. He included four in his party, three in the second and third parties that were going for the red-bordered dungeons, and the remaining two in the fourth and fifth parties.
The fourth party heading for the blue-bordered dungeon had Silvester Duncan and the League of Firefly Guild leader—Quinn Firefly, and Aryan Deva, the third rank Adventurer in Global Leaderboard.
They pulled out the rat that Admiral Rudra had put in their party and disabled him successfully.
The last rat was on the fifth party, which was headed by old monster Vladimir Kravchenko of the top 10 family and 4th-rank Ironclad guild master—Zayd Khalid. The Khalid family was also a top 20 family, though Zayd wasn't related to them.
They pulled out the rat by playing mind tricks and each old monster was experienced enough in terms of perceptiveness and finding out lies.