The Hidden Harbour - Monthly Adventure

A real letter. A new piece of the adventure. Every two weeks.

Letter Folk is a year-long mystery delivered through the post.

Every two weeks your child receives a new physical letter from Kai, a boy who discovers something impossible at The Hidden Harbour.

After a wild storm, Kai and Benny uncover a smooth silver cube buried in the sand. At first, it seems like a strange object washed in by the sea. But when Kai brings his friends closer to the mystery, the cube begins to reveal things that should have stayed hidden.

Soon Kai, Benny, Zara, Ava and Ethan are pulled into a secret in an alternate harbour, involving a hidden doorway, a strange compass, and a shadowy figure known only as the Jeweller.

Each letter continues the adventure as the children uncover the truth piece by piece.

Each letter continues the story exactly where the last one ended, creating a year-long reading experience that arrives directly in the mailbox.

Included in the Full Adventure

✓ One new letter every two weeks

✓ 24 physical story letters across one year

✓ Complete Hidden Harbour mystery

✓ Addressed directly to the child

✓ Australian postage included

✓ Billed monthly

✓ Cancel anytime

Suitable For

Curious readers aged 7–15.

Perfect for children who enjoy mystery, adventure, exploration, puzzles and stories that unfold over time.

A Flexible Way To Begin

The Monthly Adventure lets families begin the journey with a simple monthly payment.

Your child receives the same complete story experience as the Full Adventure, with letters continuing every two weeks as the mystery unfolds.

The First Mystery

After the worst storm Kai has ever seen, Benny digs a smooth silver cube from the sand. It has no markings. No scratches. No obvious reason to exist.

Soon Kai, Zara, Ava and Ethan discover a hidden staircase beneath the lighthouse and a doorway into another version of their harbour. A place where the sea is too still. The shops are too perfect.

And someone known only as The Jeweller is determined to stop them discovering the truth.