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"Adventures on the ground and undersea to set the (cog)heart racing"

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LoveReading4Kids Says

LoveReading4Kids Says

January 2020 Book of the Month

This is the fourth and indeed final book in Peter Bunzl’s hugely enjoyable Cogheart adventure series.  Lily, the girl with the clockwork heart, and her friends Robert and Malkin the ‘mechanimal’ fox, are off to New York with her father to meet up with Robert’s mother and sister. The adventures start the minute they step off their ocean liner (the series is set in a steampunky late 19th century) and involve kidnap, stolen jewels and a heartbroken boy willing to do anything to put his family back together. There are wonderful scenes of adventure with escapades taking place on trains, hotel balconies and most thrillingly in an underwater diving vessel. Non-stop as the action is, there’s always time for Lily to realise what really matters and that love and friendship keep the world’s heart ticking.  An excellent series and while each book stands alone, I’d recommend treating young readers to the set.

Andrea Reece

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Reader Reviews

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Shadowsea is a fast-paced adventure story set in New York where Lily, Robert and Malkin are literally thrown into a scary adventure in search for answers and to help the poor mute boy being held captive by his aunt. Or is he? A must-read for Spring!

This final Cogheart adventure takes place in and around a booming New York. The children and Malkin come across a mystery whilst in the hotel on their first night and, as always, takes you on a journey to find out the truth.

Secret messages start to come, adults are tricked to avoid getting caught... it's all tense!

The twists are unpredictable and new characters enter the story from all angles - it all adds to the scary but exciting adventure to save the poor boy. Or maybe he isn't all that innocent?

I really liked the settings of old fashioned New York with all the famous places they visit.... Read Full Review


Shadowsea is a brilliant adventure story that is wonderfully illustrated. I read the story to my daughter and she loved the tale which was a real page-turner.

Shadowsea is an excellent children's book. It was a bit too old for my 7-year-old but she enjoyed me reading it to her.

The characters Malkin, Lily and Robert are involved in an exciting adventure that starts at their hotel and leads to underwater action.

Kids will love this and I enjoyed reading it to my daughter.

The book is well illustrated and has a nice feel to it.... Read Full Review

Elissa Watkin

This incredible novel grips your mind and the constant tension provides an entertaining storyline that captures the reader's attention.

Shadowsea is an amazing book. You pick it up and it is like you are transported into a magical world where anything can happen. The mystery of the book provides suspense and attention making the reader empathise with every turn of the page. The captivating description of the underwater world lights a candle in the reader's mind, painting a picture. This incredible novel grips your mind and the constant tension provides an entertaining storyline that captures the reader's attention. The perilous adventures make you wish you had a life like Robert's and Lilys.... Read Full Review

Rodborough Reader