Book 2

The Haunted Attic

by Margaret Sutton

Published 17 April 2008

Book 3

The Invisible Chimes

by Margaret Sutton

Published 17 April 2008

Book 4

Seven Strange Clues

by Margaret Sutton

Published 17 April 2008

Book 5

The Ghost Parade

by Margaret Sutton

Published 17 April 2008

Book 7

The Mystic Ball

by Margaret Sutton

Published 17 April 2008

Book 10


Book 11

The Unfinished House

by Margaret Sutton

Published 17 April 2008

Book 12

The Midnight Visitor

by Margaret Sutton

Published 17 April 2008

Book 14


Book 21


Book 23

The Black Cat's Clue

by Margaret Sutton

Published 17 April 2008

Book 26


Book 27


Book 28

The Haunted Fountain

by Margaret Sutton

Published 13 November 1957

Book 30

The Phantom Friend

by Margaret Sutton

Published 17 April 2008

Book 31


Book 32


Book 35

The Hidden Clue

by Margaret Sutton

Published 17 April 2008

Voice in the Suitcase #8

by Margaret Sutton

Published 7 October 2011

The Name on the Bracelet

by Margaret Sutton

Published 7 October 2011