While I was having this dream, it was very cold in my room, which kept me hovering near the edge of consciousness - which is probably why i remember this so clearly.
I was in a maze with someone; I think it was my youngest sister, only she's older than me and I got the impression this person with me was a child, so maybe in the dream I was a child, too; she's only a year and a half older than me so we grew up playing together, sharing a room until she reached about 10.
The maze was inside, running through a series of large rooms with square floors. I think there was a green carpet on the floor but it was very gloomy in all the rooms so it appeared very dark. The walls of the rooms I think were just generic pale walls. The walls of the maze were wavy, set out parallel to the room; they may have been made of concrete or something similar. The walls were not so high that I couldn't have conceivably climbed over them, but I got the impression that doing so would be a very bad idea; maybe if I started breaking the rules, the thing following us would, too.
There was something else in the maze, some monster chasing us. It was something like an orc from the LotR films, and something like that creepy eye-hand monster from 'Pan's Labyrinth' and just generally the generic monster archetype. We were running away from it; I don't know exactly what it would have done, had it caught us, but eating us seems the likely action.
There were odd bits of furniture and other stuff in the rooms; I remember seeing an overturned child's chair, and later on a table with two small plates stacked on it . It felt as though I was being tempted to stop. the chair and table are both things we had as children, made of red plastic - they'd be very recognisable to me in Real Life, as part of my childhood as my sister herself. I have a peripheral feeling that there was other furniture around; pot plants, pictures of the walls, other chairs and cabinets...
Scattered on the floor in odd places were sweets (candy to you yanks); cheap chocolate bars and the little chewy strips you get in mixed bags, and probably other stuff. There were empty wrappers lying around, too. I clearly remember at one point gathering up a big handful of sweets, splitting it into two lots and letting my sister take one, before we resumed running.
On at least two occasions we arrived in new rooms and split up to search different ends of the room for a way through. Both times we returned together, neither of us having found anything, forcing us to return to the previous room to search for a way we'd missed. Eventually I'd return to the room we'd searched together and I'd look in the end my sister searched, and find a way forwards that she'd missed - a tiny gap disguised by the irregular shapes of the walls. These mistakes let the monster get extremely close to us, sometimes close enough to touch, had we so desired.
Despite her mistakes, I remained close to and protective of my companion; it gave me a feel of being the older, more mature party, despite my feeling that my partner was, as I said, my youngest (but still older) sister.
I had a definite feeling that somewhere this maze had an end, and if we could find it we'd be safe.
Then my damned alarm clock went off and I had to get up, so I'll never know if we were gonna make it.
tl;dr Hunted by monster through maze filled with stuff from my childhood, including my sister-as-a-child.
Xjuijo uif gjstu ufo qptut tpnfpof xjmm tbz. "Zpv'sf hbz".