A lovely first 7a for girls, where small hands and flexibility can be a real bonus. Sit start on a pad, with a left hand on the arete and a left heel hook, and climb the arete with somewhat sharp crimps for the right hand, and finish with a mantle at the top.
Rain sucks, but broken holds suck even more. Remember, never climb on wet rock in Fontainebleau.
The sandstone becomes brittle, and pulling on it will ruin classic problems. Drying it doesn't help, because it's still wet and weak inside.
All you can do is wait for better conditions.