Coquina is a settlement located in the middle of the deserts of Vacuo. Its most notable institution is Oscuro Academy, a combat academy for Huntsmen-in-training.
Following a Grimm attack on the settlement of Feldspar, Team CFVY aids Vacuan travelers in reaching the settlement. During their travels, Carmine and Bertilak attempt to kidnap August and Edward Caspian, but are subsequently arrested and imprisoned in Coquina.
- Coquina is a sedimentary rock that is composed either wholly or almost entirely of the transported, abraded, and mechanically-sorted fragments of the shells of mollusks, trilobites, brachiopods, or other invertebrates.
- This maintains the theme of Vacuan settlements being named after rocks and geological formations.