who is the author for harry potter and the deathly hallows?
CREATE TABLE "odyssey_award_winners_and_honor_audioboo" (
  "year" real,
  "title" text,
  "producer" text,
  "narrator" text,
  "author" text,
  "citation" text
);
SELECT "author" FROM "odyssey_award_winners_and_honor_audioboo" WHERE "title"='harry potter and the deathly hallows';