Remaining unlocked events: Jungle entrance(14:00), Railway(15:00)
Can summon echoes for the first one(but only with the lighter), not the second.
Viewing post in The Red Pearls of Borneo comments
I think the clue you need is in Command Post (13:00). Full details in ROT13: Pyvpx ba gur anzr Puneyrf Oebbxr. Qrycuvar jvyy fnl fbzrguvat nobhg urnevat uvf anzr va gur tybffnel. Tb gb gur tybffnel naq fpebyy gb gur frpgvba ba gur Pbybavrf. Pyvpx ba Puneyrf Oebbxr va gur frpbaq cnentencu. Uvf cubgb fubhyq or nqqrq gb gur thrfgf abj.