CREATE TABLE table_74394 ("#" TEXT, "Title" TEXT, "Author" TEXT, "Doctor" TEXT, "Featuring companion" TEXT, "Published" TEXT, "ISBN" TEXT, "Audiobook narrator" TEXT)

What is the publication date of the book that is narrated by Michael Maloney?
SELECT "Published" FROM table_74394 WHERE "Audiobook narrator" = 'Michael Maloney'
SELECT "Published" FROM "table_74394" WHERE "Audiobook narrator" = 'Michael Maloney'