@Paul
"Thanks a million~"
Marta says while smiling.
She then applies several thousands layers of barriers around the room, which give it concelement, anti-detection and anti-teleportation proprieties and much more. This defensence is also further boostd by the fact that if a layer of barrier goes down, a localized time rewind on a conceptual level will put the barrier back, while the attacker will be counterattacked by being sealed and having his powers nullified.
The only things not being blocked by these barriers are telephatic, or any other kind really, attemps to conctact those within the room, as Marta doesn't want to completly isolate herself from the rest of reality.
She also renders it acasual to block claiyroviance and future sight abilties and puts a law that disallows anyone from entering without his or Eden's permission, with the only exception to the rule being the two of them.
@Faruel's robot thingo
"Sure, you can remain here, but two things."
"First"
A door appears in the left wall of the room.
"You will stay there."
She says while pointing at the door with her left arm.
"and second."
She then move her left arm and points her hand towards Dynamo, who suddenly has it's apperence changed to
something cuter.