"I will be back soon then," Merlin promised, backing away. "Make yourself at home." He went to the kitchen to put the little savouries and fancy finger foods on dishes, and placed them on a trolley to serve. He normally didn't like too much food in the library because of the mess, but the centre area was a little exception.
He paused before taking it back out, peeking around the door to see if Luna had succumbed to her curiosity and gone to a shelf to look at things. There was no shortage of things to draw her attention.