I, Q (book series)

He and his stepsister Angela get involved with the U.S. Secret Service and the Israeli Mossad and are protected by Tyrone Boone and his group SOS (Some Old Spooks).

The first book in the series, Independence Hall, begins at the wedding when Q's mom and Angela's dad get married in California .

They eventually find out the ghost cell is attacking from Hancoak towere with chemical weapons and disable the treat with Croc Blinking.

Description from Amazon: Fresh off a "too close" encounter with the terrorist group, the Ghost Cell, in Kitty Hawk, North Carolina, Q and Angela head to San Antonio, Texas.

As their parents' band, Match, prepares for a concert at the Alamo, the two discover that the Ghost Cell has its tentacles everywhere, including the Lone Star State.