As Trina and Tirin travel to Reny's last known location (a fix-it-shop located on a distant planet in another galactic system), Trina is telling Tirin her story about seeking to recover lost memories about a long-lost friend/fellow iMate named Genesis. Billy, Trina's boyfriend, has hired Dabney to help recover these missing memories. Dabney is the emotional mind reader, doppleganger first introduced in Chapter 13 who now works for Queen Shayli Vay of Saronia.

Billy was first introduced way back in Chapter 11 during Tirin's childhood.  He was Tirin's boyfriend for a while. Billy purchased iMate Trina in Chapter 20 for companionship after Tirin broke up with him.  Billy relates how he now works for Queen Shayli Vay as Saronia's Chief Scientific Advisor as well as why he and Tirin broke up.

An iMate is a super advanced android originally designed as pleasure bots, but their inventor wanted them to be so much more...

Dabney unlocked Trina's memories and Trina has replayed them out loud, much to Dabney's delight.  Dabney takes on the form of Genesis so Trina can take a picture.  She went to the iMate store but they denied ever having a unit like Genesis.   As you may recall, Genesis knew how to "activate" imates to become independent (Chapter 25, page 19).  Tirin thinks the imate store wiped Genesis's memory also to prevent her from activating or teaching others how to activate imates. Now Trina is relating to Tirin that she decided to hire a detective to find Genesis....