Griffie was just doing some regular gardening tasks when ey experienced a conflagration that tore a hole in reality. Ey falls through the tear while failing to call the spacetime police, and then finds that the sensation of dissolving is even more distracting than suffocation, but not quite distracting enough to prevent em from using an emergency casting of modified Life Bubble to make it stop.
And now ey's stopped dissolving and can breathe! Also, the tear is gone. Ey looks around.