Storm Rising by Linda Kay Silva

Delta Storm is back!
In another breathtaking, heart-stopping adventure through the Costa Rican Rain Forrest, Delta, Connie and Megan face their toughest challenges as the overcome impossible odds and stop General Zahn.
This isn't River Vally!
With the help of her police partner, Carducci, and the mysterious cat burglar, Taylor, as well as many loyal friends, Megan and Connie find and rescue Delta.
Will Delta succumb to Taylor's charm? Will Delta's warrior spirit be true?