A year ago, teen engineering prodigy Chevonne Watson rescued Sherlock, a brilliant humanoid AI discarded for her destructive tendencies, from a scrap pile. Now, Sherlock spends her days solving mysteries, like the mythological detective after whom she was named.

When Chevonne gets an urgent call from Sherlock about a new client, she knows this is no ordinary case. Something about the young man, who is desperately seeking answers about his parents' strange behavior, seems to interest Sherlock more than usual.

Unwilling to let her troubled AI roommate run off alone, Chevonne accompanies Sherlock into the far reaches of space--to the starship Silicon Beeches--in pursuit of the truth.