There are moments that you’ll remember for the rest of your life and there are moments that you think you’ll remember for the rest of your life, and it’s not often they turn out to be the same moment.
It’s island life–a small town, far out on the water that lives and dies by the one big event a year. Just in this case, that one event is a race involving murderous meat eating horses that come from the sea and would like eating the racers just as much as carrying them. It’s a magical combination of worldbuilding, with the quiet island life and violence of the sea horses complementing one another nicely.