Check out Philp's interview with ACHUKA.

Title/Author	Publisher (UK/US)	Date
Count Karlstein	Chatto & Windus Knopf	1982 1998
The Ruby In The Smoke	OUP Knopf	1985 1987
The Shadow In The North	OUP Knopf	1986 1987
The Tiger In The Well	Viking Knopf	1991 1992
The Tin Princess	Puffin Knopf	1994 1994
The Snowman Who Couldn't Melt	Viking Puffin	1993 1994
Spring-Heeled Jack	Doubleday Knopf	1989 1990
The Wonderful Story of Aladdin and the Enchanted Lamp	Deutsch	1993
The Firework-Maker's Daughter	Doubleday	1995
Clockwork, or All Wound Up	Doubleday	1996
Thunderbolt's Waxwork	Viking	1994
The Gasfitters' Ball	Viking	1995
I Was A Rat	Doubleday	1999
How To Be Cool	Heinemann	1987
The Broken Bridge	Macmillan Knopf	1990 1992
The White Mercedes (The Butterfly Tattoo)	Macmillan Knopf	1992/1998 1993
Northern Lights	Scholastic Knopf	1995 1996
The Subtle Knife	Scholastic Knopf	1997 1997
A Little Bit of Winter	Andersen	1998
Millie's Party	Egmont Blue Banana	1999