Use Isis to get the BATTERY (C).
Look at the poster (D).
Go to the Fish Gates (E).
Take the DICTATION TAPE (F) and GEAR (G).
Touch the figurine (H).
Return to Outside Tent.
Place the DICTATION TAPE on the device; touch it and take the BATTERY (J).
Return to the Crossroads.
Insert the 2 BATTERIES (K). Open the gate to activate a puzzle.