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Secrets of the Last Merfolk | Mystery Book for Kids - Alder & Alouette

Secrets of the Last Merfolk | Middle Grade Fiction | Ages 9 to 12 years

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These mythical sea folk never seem to lose their charm and illusion amongst children. Now, older children can continue the magic in a mystery that reimagines the lives of merfolk.

In a small coastal town, Finn is enduring a winter vacation with his new stepmother, wishing things could go back to how they were, while Sage is enjoying her new home, wishing things would stay as they are. Finn has seen mysterious swimmers in the sea late at night. Then, from the clifftop, first Sage, then Finn, hear an eerie song.

Could the local legend of merfolk living amid the waves be true? When the new friends meet the magical sea-people, they’re amazed, but the merfolk are hiding a secret. The two human children must put aside their own problems and help in the battle against the merfolk’s ancient underwater enemy before the last of their kind are lost forever.

From the author of the much-loved Guardians of the Wild Unicorns, Secrets of the Last Merfolk is an exciting fantasy adventure that reimagines the mythical sea-people.


  • Written by Lindsay Littleson.
  • Published by Kelpies, Scotland; October 19, 2021.
  • Ages 9 to 12 years
  •  0.7" H x 7.7" L x 5.1" W (0.5 lbs) 240 pages
  • Softcover



The author has a talent for describing magical creatures with a realism…Secrets of the Last Merfolk is exciting and action packed, and one of our favourite reads of the year.'
- Roaring Reads

'Another fantastic fast-paced middle grade novel... Lindsay Littleson delves right into the heart of loyalty between two friends determined to succeed and her writing draws you in as you join Sage and Finn on what can only be described as an epic journey. With a superb nod to climate change, carbon footprints and the pros and cons to industrial planning also on the agenda, this thought-provoking tale of humans and merfolk reveals how their co-existence can make the world a better place.'
- My Book Corner

'Believable, authentic characters in a story that never lags.'
- Youth Services Book Review on The Awkward Autumn of Lily McLean