This was such a great read, a futuristic story covering historical topics: slavery. The entire story takes place on a massive ship named the Matilda as it travels through space taking its inhabitants to a “Promised Land.” The world-building on the ship is extremely detailed and imaginative. Unfortunately, the ship is broken down by class, with darker-skinned people on the lower levels, oppressed and mistreated, barely carving out an existence, and the lighter-skinned upper class on the top levels living comfortable lives at the expense of the lower class. Aster is a bit of an outsider, and doesn’t do well socially, possibly on the spectrum, but she is extremely likable, and she gives an interesting, unemotional perspective of life on the ship. There is a mystery surrounding her mother and something she may have found out about the ship’s journey, but her mother is gone, and Aster must figure out what she was researching when she disappeared, as it is the only glimmer of hope in this dark, disturbing, well-written story.