Travel to the lake and choose the option to repeatedly until you notice a flashing object in the water. Investigate the flashing area. Select the long branch from your inventory to "Poke it" . Pull the branch out ; it will now be covered in starfish.
: The long piece is found in the original hub area (the starting wood/forest area). Deadlocked in Time [v0.10]
: Examine the starfish to reveal two letters, then release them (keeping them may cause a bug or upset the "lady" NPC). This action is required to progress the conversation with the protector of nature. Travel to the lake and choose the option