"Loud and passionate!" César has to spend a moment laughing. "He's sixteen. Very much a teenager. Very opinionated but in a good way. Heart of gold. Looks before he leaps. Makes the best faces—far, far better than mine. Smart with incredible moments of stupidity."

Oh, no, he's pulling out his phone and showing Darcy a picture of him and Rex, which happens to be the screen saver this time around. The boy looks similar to César, enough that they're clearly related, especially with both of them standing next to each other.

"But that's just his personality!" His entire face is lighting up, talking about Rex. "Because of some nanomachines in his body, he's a nearly indestructible one man wrecking crew able to turn parts of his body into giant robot parts and various other machines."