I loved the idea of making history interesting for kids! When Scholastic approached me about 'The 39 Clues', I immediately started going through the 'greatest hits' from my years as a social studies teacher, and picked the historical characters and eras that most appealed to my students.

I started off in England and very few people knew I was Australian. I mean, the clues were in the poems, but they didn't read them very carefully, and so for years and years I was considered completely part of the English poetry scene.

Physics is about questioning, studying, probing nature. You probe, and, if you're lucky, you get strange clues.

Why do we take pleasure in gruesome death, neatly packaged as a puzzle to which we may find a satisfactory solution through clues - or if we are not clever enough, have it revealed by the all-powerful tale-teller at the end of the book? It is something to do with being reduced to, and comforted by, playing by the rules.

This is where the search for meaning had led our medieval ancestors: to the certainty that God, who made all of creation, had scattered clues to the useful functions of creating things in those things, and that only a little vigilance was necessary to decode those clues. Simpling was but the most basic of this kind of learning; the search for Signs, as undertaken by the sixteenth-century German humanist Paracelsus, was a further extension of the same idea.

The whole of life is just like watching a film. Only it's as though you always get in ten minutes after the big picture has started, and no-one will tell you the plot, so you have to work it out all yourself from the clues.

I could write historical fiction or science fiction or a mystery but since I find it fascinating to research the clues of some little know period and develop a story based on that I will probably continue to do it.

Time is compressed like the fist I close on my knee... I hold inside it the clues and solutions and the power for what I must do now.

I started off in England and very few people knew I was Australian. I mean the clues were in the poems but they didn't read them very carefully and so for years and years I was considered completely part of the English poetry scene.