Taking Shape is a journey of detection and problem solving. You must shadow Detective Dee Cipher as she works – using clues and applying logic to help her solve the four cases. Each case has its own visual and sound clues, glossary and prompts to help you as you investigate.

Detective Dee Cipher is busy with four cases at once: 'Tracks', 'Louvre', 'CCTV' and 'Cadillac'. You can find out all about them by clicking in the boxes above.

To solve each case, you'll need to calculate an angle. Usually, you'll need to calculate a few other angles on the way.

But you must do more than calculate angles – you must also prove your case. And to do that, you'll have to gather clues.

So start investigating…