Quest 'Q' Munoz is a schoolkid.
He is not a junior agent - well, not in any real sense but considering the things he gets involved in, you have to wonder. Especially when he is around his new step-sister, Angela, who is a huge fan of spy adventures and is freaky good at observing and noticing and remembering things.
So neither one is an operative but both are in this compendium because of the things they get involved in and the troubles they finds ways of handling and most of all because of the really bad people that they find themselves almost constantly in conflict with, Ghost Cell.
Angela Tucker (girls first!) is described as having "shoulder-length black hair with bangs, olive-colored skin, and dark brown eyes, which she usually covers with sunglasses". She is fifteen years old.
Q (which is what his mother and so most everyone else calls him) has a much simpler description of "curly straw-colored hair, green eyes, lanky". He is two years younger (that's 13) but is already a tad taller than Angela.
Normally since these two become thick-as-thieves when it comes to those adventures I mentioned, they would be sharing title credit but probably for marketing purposes, Q gets the starring role. "I. Q". You get it. Plus Q is the one who narrates all those escapades.
Speaking of 'escape'-ades (my bad pun), Q is as fascinated with Harry Houdini and his magic and escape tricks as Angela is with spies. That will come in handy on a fair number of occasions.
So, the back story is that Q and his mother, Blaze, were living happily on their sailboat and had been for a few years. Blaze had been a professional singer out on the road a lot but when Q was born, she eventually decided to give it up to raise Q in a more normal environment. Then she met Roger Tucker who wrote songs and they hit it off and fell in love and started a rock band named Match and released an album that went double platinum overnight.
Blaze and Roger got married, which is how Angela and Q became related, and Match decided a tour of America was in order. Q and Angela would accompany their parents on their luxury motor coach and be homeschooled along the way.
It was while on this lengthy road trip that Q and Angela started noticing odd things (okay, Angela noticed them but Q listened) and soon they glam onto the fact that there was a terrorist organization called Ghost Cell and somehow there was a connection between it and them and Match's very acerbic manager, Buddy T., and the chief roadie for the group, Boone.
Hence, Q - and of course Angela - being in this compendium.