Characters
Meet Noah, Rory, Chloe, Áine and Liam — the five brave children — alongside Finn McCool, his giant dog Bran, and the mysterious Keeper of the Temple.
NNoah
The oldest of the children, blond-haired and thoughtful. Áine's older brother. Noah loves maps, clues and old buildings, and is the first to notice that the blue kite is not moving like an ordinary kite — and that the symbol on it seems to glow near Mussenden Temple. He carries the weight of looking after the others, and learns that leadership is about trusting everyone's gifts, not having all the answers himself.
- Role
- Leader, clue-solver, protector
- Key object
- The old book or journal
- Fear
- Letting the younger children down
- Growth arc
- Learns to share responsibility and trust the group
RRory
Brown-haired, clever and restless. Chloe's older brother. Rory touches the strange stone button before anyone has finished saying "don't touch that". He sees patterns quickly and is fascinated by the old mechanisms, glowing symbols and time-machine-like device beneath the temple. His curiosity gets the children into trouble — and often saves them at the last second.
- Role
- Inventor, puzzle-solver, comic energy
- Key object
- The ancient map
- Fear
- Being ignored or treated like he is too young
- Growth arc
- Learns that not every secret should be opened too quickly
CChloe
Light brown-haired, kind and deeply sensitive to atmosphere. Rory's younger sister. Chloe notices what others miss — a change in the wind, a strange sound from inside the temple, the way the Celtic symbol pulses like a heartbeat. She may be the first to sense that the children have not found the kite by accident. Something, or someone, has called them.
- Role
- Emotional heart, intuitive guide
- Key object
- The glowing Celtic symbol
- Fear
- Being separated from the others
- Growth arc
- Learns that quiet people can be very powerful
ÁÁine
Darker brown-haired, expressive and full of imagination. Noah's younger sister. Áine loves legends, giants and secret kingdoms, and is not as shocked as the others when Finn McCool enters the story — part of her always suspected the old tales were true. She solves riddles from ancient Ireland by thinking like a storyteller, not a historian.
- Role
- Storyteller, truth-speaker, courage-bringer
- Key object
- The lantern
- Fear
- That the magic will disappear before they understand it
- Growth arc
- Learns that imagination is not pretending — sometimes it is another way of seeing truth
LLiam
The youngest. Brown-haired, small, funny and full of wonder. Cousin to Noah, Áine, Rory and Chloe. Liam often says the one simple thing that makes everyone stop and think. He is not afraid of things that look strange — he may be the first to approach the giant dog, or to notice that the temple is breathing with golden light.
- Role
- Innocent truth-teller, comic relief, wonder-filled child
- Key object
- The binoculars
- Fear
- Being left behind
- Growth arc
- Shows the older children that being small does not mean being unimportant
FMFinn McCool
Not simply a giant from old stories — a guardian of ancient Ireland, connected to the Giant's Causeway, Rathlin Island and the hidden power beneath Mussenden Temple. Enormous and intimidating at first, but never cruel. He carries the sadness of someone who has watched Ireland change across centuries, and has been waiting for the right children to appear.
- Role
- Mentor, mythic guide, guardian of the old world
- Key object
- The hidden basalt path beneath the sea
- Fear
- That the ancient secret will fall into the wrong hands
- Growth arc
- Reveals why he summoned these children specifically
BBran
Huge, loyal and far more intelligent than an ordinary animal, with deep eyes that seem to understand human speech. Bran knows the hidden path of basalt columns beneath the sea between the Giant's Causeway and Rathlin Island, and can leap from stone to stone across the waves. Both terrifying and wonderful — Liam may be the first to trust him.
- Role
- Protector, transport, magical companion
- Key object
- The hidden basalt columns
- Fear
- Failing his master Finn
- Growth arc
- Crosses only when the tide and ancient stones align
MMara
A young merchild with sea-green streaks in her dark hair and a silver-green tail. Unlike the suspicious older merfolk, Mara is curious and gentle. Liam's fearless kindness surprises her and makes her question whether the children are truly enemies. Brave but nervous, she helps them retrieve the Blue Binding Stone and escape, choosing to believe that land and sea can share the old promise again.
- Role
- Bridge between children and merfolk, guide through the caves
- Key object
- The Blue Binding Stone
- Fear
- Betraying her people
- Growth arc
- Learns that friendship can cross the boundary between land and sea
PtPip the Puffin
A small puffin from Rathlin Island with bright orange feet, a serious expression, and a talent for appearing at exactly the right moment. Pip does not speak, but Liam is convinced he understands every word. He helps the children find their way through the cliffs and sea caves of Rathlin, usually while looking deeply unimpressed.
- Role
- Guide through Rathlin's cliffs and sea caves, silent companion
- Key object
- The hidden sea cave paths
- Fear
- Being ignored or not followed
- Growth arc
- Proves that the smallest guide can lead the way
TMThe Merfolk
An ancient people who live in the cold waters and hidden caves around Rathlin Island. Beautiful but unsettling, with silver, green, black and blue hair that drifts like seaweed, dark shining eyes, and skin that catches the light like wet pearl. They rise silently from the water to warn the children off the hidden sea-road, using mist and song to trap Bran. They took the Blue Binding Stone because they believed Finn and the land people had forgotten the old promise that kept balance between land and sea — but by hiding it, they weaken the basalt road and crack the caves of Rathlin. Proud, watchful guardians who have become afraid.
- Role
- Apparent antagonists, guardians of the Binding Stone, moral complexity
- Key object
- The Blue Binding Stone
- Fear
- That Finn will misuse the sea-road and forget the sea beneath it
- Growth arc
- Revealed not as villains but as frightened guardians of an old promise