What do the children do on their first September fourth? How did they feel on this day?

it is now September 4 for the first time. They bury Victor, and prepare three rowboats to set off and leave the island in. The ten children, with Miss Peregrine in her cage, set out on their next journey. The loop's failure means that Miss Peregrine can no longer protect them from the rest of the world, and they must grow up and face its evils, however awful they may be.