The London single mother and her 10-year-old daughter who scored a seven-figure advance in England for a trilogy of children's books called Lion Boy have now sold the same series here, to Lauri Hornik, editorial director at Dial Books for Young Readers. They are Louisa Young and Isabel Adomakoh Young, and the deal was made with agent Derek Johns at A.P. Watt in London, who had earlier sold the project to Puffin U.K. The trilogy, aimed at readers 10 and up, is about a boy who can speak the languages of cats, and uses their help to seek his kidnapped parents. Isabel thinks up the story, and her mother writes it down, and inspired by the fuss over the J.K. Rowling—like tale in London, DreamWorks has already optioned the tale for the movies. Mother and daughter write under the pen name Zizou Corder, after Isabel's pet lizard, and their first installment will appear here next spring (in London in October).