The Secret Signal — Simon Haynes

Hal Junior uncovers a threat to the space station and everyone on board. How will he warn them? With a Secret Signal, of course!

Ten-year-old Hal Junior lives aboard an orbiting space station, where his mum is chief scientist, his dad cleans air filters and his best mate is Stephen 'Stinky' Binn.
Everyone in class is excited, because they're getting a guided tour of a visiting space ship. But during the tour, Hal discovers a secret which threatens the space station and everyone on board.
Unfortunately, Hal's a bit of a troublemaker, and even if he manages to get the message out, there is absolutely no guarantee anyone will believe him.

Hal Junior: The Secret Signal features mayhem and laughs, daring and intrigue ... plus Hal's home-made space cannon!

29,000 words (186 pages), illustrated. Middle-grade science fiction for 8-12 year olds. The Secret Signal will appeal to kids with a sense of humour and a taste for adventure.

This is the first book in the Hal Junior series. Book two, The Missing Case , and book three, The Gyris Mission, are also available.

Simon Haynes is the British-born, Australian author of the Hal Junior, Harriet Walsh and Hal Spacejock series. His books feature robots and space travel, with that all-important serve of laughs and mayhem.

Hal Junior evokes Just William, Dennis the Menace, Jennings and Darbyshire and more, while bringing its own unique style to modern readers.