Ignis' breath catches in his throat for a moment. The question isn't surprising but... the answer... he really wishes he could give his Prince and King a different answer than what he is expecting.

"No," Ignis says slowly, "he didn't." It felt as if there was a knife cutting through his throat as he said that.

"...he remained by your side. Until the end." Ignis doesn't know the details, but the last thing he does know was that Clarus was at the Citadel, with his King, on the day he left with Noctis.