There are 4 books in the Tales From The Sinister City series. The newest book is The Lunatic's Curse which came out in 2010.

2
The Bone Magician

Book cover of The Bone Magician

Since his father disappeared under a dark cloud of scandal, Pin Carpue has been alone in the world. His work for the local undertaker keeps him busy, but his life is bleak. Then Pin encounters the Bone Magician, a man who can raise corpses and make the dead speak.

As…

3
The Eyeball Collector

Book cover of The Eyeball Collector

When his butterfly-collector father is swindled to within an inch of his life, a vengeful Hector leaves the city of Urbs Umida in pursuit of a fiendish villain with a glass eye. The trail leads to Withypitts Hall, a forbidding Gothic mansion as warped as its inhabitants and their secret…

4
The Lunatic's Curse

Book cover of The Lunatic's Curse
Deep within the heart of the Moiraean Mountains lies the town of Opum Oppidulum - home to the freezing Lake Beluarum and it's rumoured monster. An inescapable asylum stands in the centre of the lake, enclosed by the sheer cliffs of Drop Rock island. When Ambrose Grammaticus, famous inventor and…