The article mentions Dickens a couple of times, but neglects to talk about when Dickens told Andersen that if he was ever in London he should drop in. The casual invitation turned into a five week stay despite increasingly panicky hints from the Dickens family that he should really leave.
HCA is famous for overstaying his welcome when invited. There was a pattern :D
Is there a source about that you could link to? Not challenging you, just interested to read about it!