CREATE TABLE table_2072 ("#" FLOAT, "Volume line" TEXT, "Volume title" TEXT, "Creators" TEXT, "Material collected" TEXT, "Publication date" TEXT, "ISBN" TEXT)

Name the umbr of creators for flash of two worlds
SELECT COUNT("Creators") FROM table_2072 WHERE "Volume title" = 'Flash of Two Worlds'
SELECT COUNT("Creators") FROM "table_2072" WHERE "Volume title" = 'Flash of Two Worlds'