10 a.m.
And , finally and supremely , he had experienced the greatest stroke of joy , ecstatic and bewildering joy , of his whole existence -- the news that Camilla lived . It was this tremendous feeling of joy , and not by any means his complex and variegated worries , that might have prevented him from obtaining the sleep which Nature demanded . On reaching the dome at 2 a.m. , he had taken four tabloids , each containing 0 · 324 gramme of trional , and had drunk the glass of hot milk which Simon always left him in case he should want it . And he had written on a sheet of paper the words : ` I am not to be disturbed before 10 a.m. , no matter what happens ; but call me at ten . -- H. ' ; and had put the sheet of paper on Simon 's door-mat . And then he had stumbled into bed , and abandoned himself to sleep -- not without reluctance , for he did not care to lose , even for a few hours , the fine consciousness of that sheer joy . He desired to rush off instantly into the universe at large and discover Camilla , wherever she might be .