The interest in Rupert's Thala has made me think again about the relationship between the two boys. Without getting too involved, water is usually a metaphor for the unconscious, the creative process or perhaps the spiritual journey from darkness to light, and so Rupert uses it. But judging from his sonnet, in Michael's mind the imagination is a place of ghosts and terror. We may represent the relationship quite simply as Michael saying to Rupert: "I am frightened", and Rupert replying: "There is nothing to be frightened of," which worked very well for both of them as Michael grew out of his fear and Rupert found a use for his own experiences. Unfortunately they both underestimated how powerfully destructive the disturbed mind can be.