Magus Xion did not tell an ounce of a lie as he spoke to the three. What he said was just one of the Magus Alliance secrets.
He just told them that Emery would be joining a Rank A classified mission. Magus Ramora, being a guide to such privileged acolyte, could quickly confirm it through her network.
Even though she didn't have the necessary level of authority required to know the mission's details, she could give confirmation that what Magus Xion said was legit.
This information made the two dwarves quickly panic, especially for Master Dulin, whose face could be seen turning pale from the shock. This sight only further increased the suspicion Magus Xion had on them.
