When a deadly virus returns to wreak havoc across the planet Solaerys, seasoned depth-hunter Dav'ian follows up on his late father's investigation into a disturbing inter-clan conspiracy. His estranged daughter Alv'a discovers she's been infected and has mere weeks to live. Dav'ian's race against time accelerates as he scrambles to get Alv'a healed and restore his clan's honor.
After Kem'var departs for the South of the continent to rendezvous with Dr. Ayanna Sig'genfir, D'avian assists his mother in escorting the Ax'ad caravan to Sa'nggyen across the Annorien Channel.