This is one of the final pictures created by graphic artist Johnny Hicklenton before he died at a Swiss euthanasia clinic.

The 42-year-old, who had lived with multiple sclerosis for ten years, put the final touches to his new book 100 Months, the day before making his final journey.

The book, officially launched in Brighton this week, is a dark apocalyptic fable, warning that we only have 100 months left to save the planet.

His close friend Adam Lavis said many readers would conclude that some of the themes of the novel were connected to the artist's struggle with his condition, but there was more to it than that.

He said: “I can see why people might think that but there was a wider story involved, where he was raging at the world for what it was doing to itself.”

Mt Hicklenton, who lived in Brighton, travelled to the Dignitas clinic in Switzerland in March.

He was best known for his work on comic books Judge Dredd and 2000AD.

Mr Lavis co-directed the TV documentary Here's Johnny, which talked about the artist's struggle with his illness.

The film showed how Mr Hicklenton's body gradually deteriorated and he began to live in an increasing state of immobility and restriction.

He was able to escape through his art but in the end he reached a point where he felt he no longer wanted to continue.