Illumicrate special edition of The Principle of Moments by Esmie Jikiemi-Pearson. Discerption below from Illumicrate: Our December Illumicrate book is an adult science fiction debut! In a galaxy where humans are indentured to the empire, one young factory worker is determined to rescue her sister. When a time-traveller saves her life, they team up to break into the emperor's stronghold - the place that holds the answers both need. But a prophecy is afoot, and now they must reckon with a legacy centuries in the making.