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Cover of The Secret Lake
Chapter · ages 8–11

The Secret Lake

A Children's Mystery Adventure

Written by Karen Inglis

Book 1 in The Secret LakeView the full series

Bestseller
Top giftable

A lost dog, a hidden time tunnel and a secret lake launch a brother and sister into a century-old mystery. A gentle, page-turning time-slip adventure for readers who like their thrills without the fright.

  • Best for8–11
  • FormatChapter
  • Length122 pp
  • Read aloud~1 hr45 min
Where to buyPaperback
WaterstonesIn stock
£7.99
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The vibe

What it’s like.

Style

  • Conversational

Tone

  • Adventurous
  • Exciting
  • Warm
  • Nostalgic
  • Gentle

Themes

On the pagetime travel, time tunnel, missing dog, edwardian era, siblings, summer holidays

Experience meters

Energy3/ 5
Humour2/ 5
Scariness2/ 5
Peril2/ 5
Wonder4/ 5
Cosiness3/ 5
Emotional intensity2/ 5
Conceptual intensity2/ 5

What’s it about?

The story.

When Stella (11) and her younger brother Tom (8) move into their new London home, they are puzzled by the repeated disappearances of Harry, their elderly neighbour's little dog. Following the mystery over the summer holidays leads them to a rowing boat buried under a grassy mound, and a tunnel that opens onto a secret lake. Stepping through, the pair find themselves in their own house and gardens almost a hundred years earlier, where they meet Lucy and Jack, children living there in a bygone age. As past and present tangle together, Stella and Tom are drawn into a daring plan to help Jack, who is in trouble, and to unravel what really links the two families across time. Karen Inglis's much-loved debut is a warm, brisk time-travel mystery in the tradition of the classic garden adventures, brought right up to date. Short chapters, a real puzzle to solve and a satisfying friendship-across-time make it a reliable hook for eight-to-eleven-year-olds and a comfortable read-aloud.

Fit check

Right for your child?

Where it lands by age

Squarely a 8-11 read: independent readers will manage the short chapters comfortably, while it works as a read-aloud from about 7. Low peril and no heavy content make it a safe bet for younger or more sensitive readers moving up to chapter books.

  • 1
  • 3
  • 5
  • 7
  • 9
  • 11
  • 13
  • Best fit · 8–11
  • Read aloud · 7–10
  • Independent · 8–11

Prose load

Moderate

Visual support

None

Reluctant-reader friendly

Very

Read-aloud quality

Strong

Works well for

  • Reading aloud
  • Gift-buying
  • Reluctant readers
Low sensitivityNo content warnings

Nothing in the book is likely to concern most parents. Safe to recommend without preview.

Bedtime suitability

3 / 5 · Workable

Sensitive-child

4 / 5 · Good fit

Graphic intensity

1 / 5 · None

Best for

  • Time travel adventure
  • Gentle mystery
  • Reluctant readers
  • Read aloud

Avoid if

  • Wants high stakes fantasy

Particularly good for children who are…

  • Reluctant reader
  • Moving house

Why it lands

Why they love it.

Why kids love it

There's a real mystery to crack, a hidden lake only they know about, and children from the past to befriend. The disappearing dog pulls you in fast, and the idea that your own house held secret lives a century ago is irresistible.

  • Time travel
  • Secret world
  • Adventure and freedom
  • Being a detective
  • Friendship and belonging

Why parents love it

Short chapters and a clear puzzle make it an easy sell to newly independent readers, and the low peril suits sensitive children. It reads aloud beautifully and quietly echoes the classic time-travel adventures you grew up with.

  • Nostalgia
  • Bedtime appropriate
  • Quick to read

In the series

The Secret Lake.

3 books · open the series →

About the author

Karen Inglis.

KI

Karen Inglis

Writer · United Kingdom

Karen Inglis is a British children's author and one of the UK's self-publishing success stories, whose time-slip mystery The Secret Lake has sold over half a million print copies and been translated into more than a dozen languages after early rejection. Set in London, it follows siblings Stella and Tom, who chase a neighbour's vanishing dog through a hidden tunnel and out onto a secret lake a hundred years in the past. Its long-awaited sequels, Return to the Secret Lake and Beyond the Secret Lake, deepen the friendships-across-time and raise the stakes, the latter winning the 2025 UK Selfies Children's Book Award. Warm, brisk and old-fashioned in the best sense, Inglis's adventures are a reliable hook for eight-to-eleven-year-olds who like their thrills without the fright.

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Last reviewed · July 2026Suggest a correctionHow we recommend

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