Midnight in the hospital ward and everyone is asleep except Henry. His pet mouse is sick, too.

Before he knows what's happening, tiny doors open in the skirting boards and mice dressed as doctors and nurses wheel out tiny beds. The mice are taking over the hospital for the night and setting up their own emergency ward.

This enchanting story, illustrated with a remarkable gallery of mouse characters by the inimitable Ralph Steadman, will have special appeal for any child who has ever had to visit hospital.