From the back cover:
You are an Interplanetary Spy. Your mission is to capture Phatax, the Kirillian. He is a ruthless criminal who has stolen the Royal Jewels of the planet Alvare and kidnapped its young prince. You must recover the jewels and bring Phatax back alive!
On their first mission of the series, the reader must re-capture an escaped criminal called Phatax, rescue a kidnapped prince and recover a collection of stolen royal jewels with strange powers.
available under the CC-BY-SA License.