[van Zieks practically flinches at this, and it's clear from his almost wounded reaction that this is something that has in fact been deeply weighing on him.]

I do not want to nor plan on keeping it from her forever. But she.... She is only ten years old. And she is perfectly happy with the man she currently calls father. [Even if he is, as van Zieks as said, Maddening.]

She has invited me to share in her life, and I will do so. But I would... I would allow her at least a few more years of childhood before broaching such a complex subject. Learning this about my brother, even I am not certain whether I would prefer to have remained in the dark.