In The Flash # 123—"Flash of Two Worlds"—Allen is transported to Earth-Two where he meets Jay Garrick, the original Flash in DC Continuity; it is revealed that Jay Garrick's adventures were captured in comic book form on Earth-One.
Dalam The Flash #123—"Flash of Two Worlds"—Allen dibawa ke Earth-Two di mana ia bertemu Jay Garrick, Flash asli di kontinuitas DC; terungkap bahwa petualangan Jay Garrick ditangkap dalam bentuk buku komik di Earth-One.