All For One

The year is 3021. The continents have reconnected to create one large island, and wars, weathering, and erosion, have whittled it down to something much, much smaller. A terrible dictator who goes by Henri Gabe, has changed the laws of all of Endry, so that, if you're not heterosexual, whether you're closeted or not, his Henches will come after you and slaughter you.
Somehow, Ryan, Riley, Sara, Lulu, Harriet, Oliver, Elinor, and Alex have managed to escape or avoid capturing, and, in a world where hetero is the only acceptable norm, they can't survive.