Seraphine did not really mean to invade Eric's privacy.
She already read too many storybooks to not know where this is going, and she is well aware that this hidden pathway is hidden for a significant reason. While it may not be her fault that she discovered it as soon as she came to the imperial palace, it was starting to make her want to do the opposite of what she should – she's curious as hell.
'Well, considering that this secret passage is located in his office, it's probably used like some evacuation route when there's an emergency…' Seraphine thought to herself, choosing to deny her temptation and put her curiosity aside.
'At any rate, I shouldn't poke my nose into his business too much.'