17
Subject to—
(a) section 18 of this Act;. . .
(b) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
at the expiration of the period prescribed by this Act for any person to bring an action to recover land (including a redemption action) the title of that person to the land shall be extinguished.