Adventure Island

The Mystery of the Whistling Caves by Helen Moss

The Mystery of the Whistling Caves

Adventure Island #1

Helen Moss

144 pages • first pub 2011 (editions)

fiction middle grade mystery mysterious fast-paced
The Mystery of the Midnight Ghost by Helen Moss

The Mystery of the Midnight Ghost

Adventure Island #2

Helen Moss

174 pages • first pub 2011 (editions)

fiction middle grade mystery adventurous mysterious medium-paced
The Mystery of the Hidden Gold by Helen Moss

The Mystery of the Hidden Gold

Adventure Island #3

Helen Moss

176 pages • first pub 2011 (editions)

fiction middle grade mystery adventurous mysterious medium-paced
The Mystery of the Missing Masterpiece by Helen Moss

The Mystery of the Missing Masterpiece

Adventure Island #4

Helen Moss

176 pages • first pub 2011 (editions)

fiction middle grade mystery mysterious slow-paced
The Mystery of the Cursed Ruby by Helen Moss

The Mystery of the Cursed Ruby

Adventure Island #5

Helen Moss

192 pages • first pub 2011 (editions)

fiction middle grade mystery adventurous dark mysterious medium-paced
The Mystery of the Vanishing Skeleton by Helen Moss

The Mystery of the Vanishing Skeleton

Adventure Island #6

Helen Moss

176 pages • first pub 2011 (editions)

fiction middle grade mystery dark mysterious tense medium-paced
The Mystery of the Dinosaur Discovery by Helen Moss

The Mystery of the Dinosaur Discovery

Adventure Island #7

Helen Moss

192 pages • first pub 2012 (editions)

fiction middle grade mystery adventurous fast-paced
The Mystery of the Drowning Man by Helen Moss

The Mystery of the Drowning Man

Adventure Island #8

Helen Moss

192 pages • first pub 2012 (editions)

fiction middle grade mystery adventurous lighthearted mysterious medium-paced
The Mystery of the Smugglers' Wreck by Helen Moss

The Mystery of the Smugglers' Wreck

Adventure Island #9

Helen Moss

192 pages • first pub 2012 (editions)

fiction middle grade mystery adventurous mysterious slow-paced
The Mystery of the Invisible Spy by Helen Moss

The Mystery of the Invisible Spy

Adventure Island #10

Helen Moss

192 pages • first pub 2012 (editions)

fiction middle grade mystery adventurous emotional mysterious slow-paced