Thirteen-year-old Q and fifteen-year-old Angela expect their lives to become complicated when his mother and her father, wildly popular musicians, marry, but not that they will face spies and terrorists in Philadelphia, Pennsylvania.

"The president's daughter has been kidnapped by the elusive and lethal Ghost Cell. Quest (Q) and Angela are in hot pursuit with vicious winds and blinding rain thwarting them at every turn. It's a desperate high stakes chase"--

"When Quest (Q) and his stepsister Angela head to Chicago for their parents' concert, they uncover another plot by the terrorist group Ghost Cell in the Windy City"--

With the nation reeling from the recent terrorist attacks, Q and Angela leave Chicago and arrive in San Francisco. Their parents are determined to continue the Match tour but for safety's sake, they have decided to send Q and Angela to boarding school. Not happy at the thought of being taken off the trail of the ghost cell, Q and Angela race against time with Boone and the SOS team to find Number One, the leader of the world's most feared terrorist...

2415 – In a city in the vice-like grip of its dictator, social division based on I.Q. is marked by coloured overalls. A new Great Wall is under construction to keep lower I.Qs isolated from the world. But a major problem arises for the tyrant who must seek an answer in London. Treachery abounds and plans for world domination are afoot and a nasty surprise is in store for delegates of world cities invited to a meeting. This final story in the two...

Sydney, (formerly Corporate City), 2410– The tyrant is back and the I.Q. Era is too. Democracy, once again, gives way to dictatorship. With a new vicious sidekick beside him, the 1000 I.Q. megalomaniac tightens his grip upon the city and eliminates all opposition. His plans extend beyond the shores of the Great Southern Continent and do not include peaceful co-existence with other world cities. All the while a small group of people oppose him and...

"Torn from their lives as regular kids of overworld miners, Max, Inky, and Luke must now live in a hidden library outpost--underwater! While their parents scramble to safeguard books from the wrath of the evil pillagers, the trio form an adventurous S.Q.U.I.D. Squad for investigating the deep mysteries of the ocean. Just when they are getting comfortable in their new home, seven librarians are captured and held for ransom by ancient sea-monsters called...

With their secret base discovered, the Book Guardians, bent on protecting their culture, must find a new headquarters far from the Pillagers. As they set out for the Ocean's End, a faraway, uncharted sea, a surprise Pillager attack splits the voyagers up. It is up to the stranded S.Q.U.I.D. Squad to save the library of ancient books that the Pillagers want to burn and find their way to their new base.