CREATE TABLE table_27051 ("No. in series" FLOAT, "No. in season" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "Production code" FLOAT)

What was the title of the episode written by Julia Newton in series 48?
SELECT "Title" FROM table_27051 WHERE "Written by" = 'Julia Newton' AND "No. in series" = '48'
SELECT "Title" FROM "table_27051" WHERE "No. in series" = '48' AND "Written by" = 'Julia Newton'