The question doesn't seem to entirely surprise Martel - questions about Hellsing are common, and while the subject of Princess Nuala directly is slightly less so, Mycroft does strike him as having a particular set of interests - and the fact he takes a moment to consider his response is only because it's one that deserves that consideration.

“That position puts me more regularly under Sir Integra than her counterpart,” he admits, resting his hand against the shelf that he'd tapped a moment before as he eases back from the preparation to move away, relaxing almost like some great cat at rest, “but the conversations we've had about some of my lectures have been fascinating. She has a perspective worth hearing, on the subject.” A moment later, “Political theory,” wryly.

It's something it pays for their agents to have some kind of grasp of, and so is among the courses he offers in the training program - it's not a required attendance, but it is encouraged.

“I believe we're all very relieved to have her back in her office where she belongs.” Martel is not one of those employees privy to the knowledge that it wasn't an assassination attempt, and what he's permitted to believe on the subject offends and irritates him; he's terribly susceptible to maternal leadership. After a moment, considering, “Hellsing on the whole is a less fraught employment than the library, for those among our cohort. Given the leadership and collective political interests.”

This kind of how dare those uppity new arrivals horseshit he's about to field from the professors doesn't happen there, for instance.