CREATE TABLE table_651 ("No. in series" FLOAT, "No. in season" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "U.S. viewers  ( millions ) " TEXT)

What's the series number of the episode that's written by Elizabeth Devine?
SELECT MIN("No. in series") FROM table_651 WHERE "Written by" = 'Elizabeth Devine'
SELECT MIN("No. in series") FROM "table_651" WHERE "Written by" = 'Elizabeth Devine'