After narrowing to a subtree, folding the top level heading hides all text except for the last letter in the last paragraph. An example:
----- 8< ----- * one ** two hello world * three ---------- with cursor on heading "one", do M-x org-narrow-to-subtree (C-x n s), then press tab, and you get: ----- 8< ----- * one...d ---------- with the "d" of "hello world" being visible. emacs version: 24.3.1 Org-mode version: 8.0.7 (8.0.7-6-g13cb28-elpa) OS: Mac OSX emacs was started with the -Q flag /ali