The opening
A local festival brings the characters to Rapa Nui. Their guide, Hotu, takes them inland before sunrise to see the moai facing the communities they protect. One statue is facing the ocean. Hotu says vandals could never have moved it, then refuses to discuss the canoe lights offshore.
That night no one on the island dreams. Children hear paddles beyond the reef, and old photographs show the turned moai moving a little closer to the sea each year. Hotu knows songs that the elders say vanished generations ago.
What the party is trying to do
Discover why the moai turned, restore the island's dreams, and meet whatever is approaching across the water.
A route through the campaign
- Search the quarry where unfinished moai whisper the names of living islanders.
- Follow Hotu into lava tubes containing offerings from a voyage erased from family histories.
- Sail through waves that repeat navigation chants in the voices of absent relatives.
- Meet a spectral fleet carrying descendants of people once exiled from the island.
- Confront Hotu when he admits he is Hotu Matu'a and orders the moai to turn the fleet away.
Possible endings
- Defeat Hotu Matu'a and welcome the returning fleet into a shared future.
- Turn the moai inland and preserve the old order at the fleet's expense.
- Release every stored dream, ending the ancestors' control of the sea.
History and invention
Rapa Nui is a living Indigenous culture. Its communities created hundreds of moai and ceremonial ahu, and the figures represented ancestors. The dream keeping statues and exiled returning fleet are fictional changes made for the adventure.
Content notes: historical exile, family separation, storms at sea.

I would open When the Ancestors Turn right in Rapa Nui and let the party find the first clue before anyone explains it.
I can already hear my group arguing over whether to defeat hotu matu'a and welcome the returning fleet into a shared future.
When the Ancestors Turn feels playable rather than merely clever. I know what the party is doing, what can go wrong, and where I can improvise.
I would move the reveal in When the Ancestors Turn one session earlier and let the players spend longer deciding what to do with it.
The choice to turn the moai inland and preserve the old order at the fleet's expense would absolutely split my table. Perfect.
The part where the party must search the quarry where unfinished moai whisper the names of living islanders gave me the whole first session.
I would give the first clue in When the Ancestors Turn to the least scholarly character. It keeps the mystery from becoming one person reading while everyone waits.
My players would turn the first choice in When the Ancestors Turn into a three hour argument. I mean that as praise.
This would work nicely as a DND campaign for players who enjoy investigation but still want a clear objective. When the Ancestors Turn gives them both.
The island mystery mood in When the Ancestors Turn is exactly what my group likes.
My version of When the Ancestors Turn would lean harder into protection and surveillance.
One change I might make to When the Ancestors Turn: let the helpful NPC save somebody early. The later betrayal hurts more when the kindness was real.
For a D&D campaign idea, When the Ancestors Turn leaves a surprising amount of room for the party to wreck the plan in a useful way.