Frog Hospital is good novel by a great writer. I enjoyed Anagrams quite a lot more, but mainly because the voice of the protagonist was more mature and interesting to me. Frog Hospital tells the story of Berie Carr, who stands somewhat in the shadow of her best friend Sils both physically and psychologically. The plot here moves more quickly than the one in Anagrams, and we see more of Berie's life than we did of Benna's, at least chronologically. Moore maintains a high level of descriptive detail in her second novel, but the wordplay that sold Anagrams to me isn't present to the same degree.