At last I trapped Momcat, the mother of Madness and Dobby. She is a beauty. All grey with a little white spot on her chest like Madness. Basically she looks just like Madness except that Madness is Black and she is grey. The pictures does not really do her justice, I'll try to get bettter ones before I release her.
I dropped her off at the vet this morning and will pick her up again tomorrow. She wil get spayed, get all her shots, have her ear clipped and then I will release her again tomorrow evening.
So everycat in the little family has been sterilized now. Yay!