Ilya didn't move.
No.
She couldn't move.
It's possible that the First Prince only sensed something in her direction. If she made a move, Ilya would only strengthen the First Prince's suspicions.
But Ilya had a problem.
Ophelia was slowly regaining consciousness.
She had no doubts that Ophelia would start making a fuss. And because Ilya was on alert, she might get distracted. Being distracted entailed that her concentration would be broken. If that happened, her defensive and concealing spells would deactivate out of the blue.
A split-second worth of mishap could make Ilya suffer for years to come.
Ilya held her breath, taking a glance at Ophelia to check how near the woman was to waking up. Although the woman's eyes were still tightly shut, she was mumbling things incoherently.