Marpo Cruise
The celestial space that Quinn could create with his system was intriguing, to say the least. It was completely white and one might mistake it as an endless, but it did, in fact, have an end. When Quinn walked further into the space that he had created, it would begin to distort and he would even see the parts of the ship around him in the real world.
At the same time, when he tried to expand it further, he found that the white space could be much broader than the whole ship they were on. However, when he reached the edge of the space, and the distortions would begin to form, he would himself on the exact spot at which he was sitting earlier when he made the space.
To put it simply, the celestial space that Quinn could create wouldn't be linked to the outside world, but when he returned, he would always be on the ship. It was a bit strange since, technically, the ship was always moving, and the space was also moving with it.