Hunger, silence and hunger, broken occasionally by the rumbling of their stomach. Simon was falling asleep and Hugo was sitting at the desk, drumming his fingers on the work station. They've spent 3 days locked up in the work room, starving themselves and drinking water from a leaky fire sprinkler, prospects were not looking good if they remained and Hugo knew it. Simon fell asleep, Hugo could tell because the part of the brain that Simon controlled was inactive.
'Finally.' thought Hugo as he got up and started to take down the barricade, pulling the shelves away from the heavy blast door, which in hindsight could have faired fine without the blockade, he was about to open the door when he instead reached for the fire hose box and smashed it open, from inside it he pulled out the fire axe. Hugo creaked the door open and looked through the gap nothing but dark, stale aired hallways, he slipped through and crept down the corridor as silent as a very silent thing until he reached the main foyer of the museum. It was a large domed area, columns soaring from the floor to the ceiling, holding up the roof, large French windows shut now once let in light where now only the sky light in the dome brought any in. Hugo slipped through the inky grayness and across the marble floor of the foyer, stopping beneath the skylight to feel the dim light of the moon on him. He continued to slip through the halls, all the artifacts once on display now shut behind large blast shutters, preserving them from the outside.
It lay infront of him, a stand, the consetions stand. It was a bland cart but the hunger in Hugo's stomach told him different, he stole across the marble floor towards it the shadow of dinosaur skeletons cast over the ground. He opened the side door and was amazed, box upon box of twinkies and oreos and other assorted snack foods. He crammed them onto a rolly cart and proceeded to push the cart back towards the book room. 
He stopped dead in his tracks, he heard a moan. He began to push the trollie faster as shuffling came from behind him accompanied by a cacophony of moaning. The heavy cart was not moving fast enough and they were getting closer.
'I could fight them' he thought but decided against when turned around to see half a dozen of the rotting shamblers. With reluctance to grabbed as much food as he could and ran back to the book room, sealing the bolt, himself and the food into the dusty room. 
"You reckless, Jackass." said Simon simply with a yawn.