Series
13 books in this series.
Η τέταρτη πόρτα
Τατιάνα Γαλάτουλα
Death Invites You
Paul Halter
The Madman's Room
John Pugmire
The Tiger's Head
The Seventh Hypothesis
The Demon of Dartmoor
The Picture from the Past
The Vampire Tree
The Man Who Loved Clouds
Penelope's Web
