“How do you think of so many rooms to put in the treehouses?”

“What is your favourite book – and who is your favourite character?”

“What food do you eat the most?”

“What’s going to happen next?”

In Guardian Australia’s new series, Ask A Children’s Author, writers are offering to take their young readers’ questions – about the book, about the characters, about anything at all, really.

First up is Andy Griffiths – the author of the Bad Book series, the Bum series and, of course, the number one bestselling 13-Storey Treehouse series.

If your child is a fan with a question for him, please post it in the comments along with their first name, age and city.

Or, if you’re looking for a lockdown activity, film them asking the question and email the video to australia.culture@theguardian.com with the subject heading “Andy Griffiths”.

The question might make it into the one we publish with all his answers – so long as you send it before Monday 4 May …