The River of Adventure

The Ship of Adventure

The Sea of Adventure

The Mountain of Adventure

The Castle of Adventure

The Valley of Adventure

The Island of Adventure

Five Have A Mystery To Solve: Book 20

Five Go To Demon's Rocks: Book 19

Five Get Into A Fix: Book 17

The Mystery Series: The Mystery of the Pantomime Cat: Book 7

The Mystery Series: The Mystery of Holly Lane: Book 11

The Mystery Series: The Mystery of the Missing Man: Book 13

The Mystery Series: The Mystery of the Spiteful Letters: Book 4

Five Are Together Again: Book 21

The Mystery Series: The Mystery of the Strange Messages: Book 14

The Mystery Series: The Mystery of the Missing Necklace: Book 5

Five Go To Billycock Hill: Book 16

The Mystery Series: The Mystery of the Hidden House: Book 6