Who is Abe and Grace Baxter, Abigail Cameron from Only the Good Spy Young and what is their importance?

The Baxters are Rebecca's parents, Abigail is Cammie's maternal aunt. All three are high-ranking and highly respected CIA operatives. All three are engaged in determined efforts to both keep Cammie safe and to track down Joe Solomon. They are powerful allies in Cammie's search for the truth of her identity and for freedom, and as such are manifestations/examples of the power and value of loyalty.