virtual villagers the lost children?

Question

How do you get the last gong piece

Answer 1

There is also a gong piece that you can get by clearing the thorns around the gong encasement. You must be at level 2 of exploration technology to clear the thorns.

Answer 2

Gong piece in crate - you will need 3 master builders together to open.

Gong piece in pond - you will need to make a "breathing stew" to retrieve it.
Breathing Stew Herb combo:
Orange flower by the sewing hut - put this in the stew twice.
Dark Blue chain-like flower in the graveyard near the falls, once.

Gong piece in ancient mosaic - you will need an elder totem. To get this you need a villager that mastered in 3 skills. When you have the totem, put it in the center of the mosaic to get the gong piece.