I simply cannot find the "Secret Path" that little bro refers to in Walkthrough for Chapter 13. I am returning with Seiman (to open untrapped chests) and Brussian (to indicate any hidden secret paths). {we are south of Rillian War Camp and have entered the Fortress at the first blue arrow, per littlebro's directions}
Littlebro is very specific by instructing us (the players) to disarm a chest by following "the secret path" which yields a Beon Helmet, War-God Helmet and 3 Power Peppers ... and then leads to a War Powder, Stone Flute and Power Salt.
I cannot find "the secret path" (usually indicated with a blue arrow) and of course I have tried numerous times to simply enter the walls to no avail.
(by the way, I can see this chest ... which further frustrates the player)
Any suggestions?