Storage and memories. Once upon a long ago, there was something called "sentimental value" to every item here. Time is rolling back in here, bringing waves of recollection. With the concept of grandchildren (real or de facto) on his mind, Arcturus has been back up here a couple of times recently. unearthing buried - recollections. Insofar as such is possible within Rookou realms, this is a place with happy memories.