David had passed his writers block and Lucy was better from dragon pox. He didn’t want Lucy to see him working on her story so he wrote on a card:

“DO NOT DISTURB”

He was writing the story and apparently what he wrote was happening. He wrote that a giant crow or the Caracactus was chasing Snigger and Conker. Then Lucy came and said the Caracactus was doing the same as in his story.