Viking executive editor Pam Dorman bought a new novel by Helen Fielding of Bridget Jones fame. It introduces a comic heroine, Olivia Joules, who sees herself as a kind of rather erratic spy. Dorman bought U.S. rights to Olivia Joules and the Overactive Imagination from London agent Gillon Aitken and plans publication next summer.... The architect chosen to design a replacement for the World Trade Center, Daniel Libeskind, sold his planned book about building in the wake of tragedy to Susan Lehman at Riverhead for North American rights. The deal, made with agent Scott Mendel, provides for a share of the author's profits to go to WTC survivors' families.... High-flying YA author Meg Cabot has signed a seven-figure deal with HarperCollins Children's Books, in the person of Abigail McAden, for five more books, including three in her popular Princess Diaries series; a fourth will be a companion to her All-American Girl. Agent for the North American rights deal was Laura Langlie.... A book by first novelist Sarah Miller for the YA market attracted bidders from adult publishers, too, and went to one: Jennifer Weis at SMP, who made a strong six-figure bid to William Morris's Jennifer Rudolph Walsh, acting for 17th Street Productions.