One chapter to go, but feeling drained

I managed to finish a draft of the second chapter that I'm responsible for and sent it off on the 9th, but I haven't made much progress on finishing the third chapter. I have over half of it done, I suppose, but there are a few points for which I need to spend some time looking through and organizing some archival documents.

But right now I am not quite in the mood to work on this. Two days before I sent off the second chapter, I heard from my mother that her older sister passed away. Aunt Lucy (married to Uncle Erich, who died in 2014) was 102. When someone reaches that age, you simultaneously feel that she could go at any time and also feel that she will be around forever. Even though we saw her decline in the last year or so--and especially toward the end--it's hard to believe that she's gone. My mother, who talked to her on the phone almost every night for an hour for probably 15 years, has lost the last person with whom she could share--really share, not just talk about--all their childhood memories. And Aunt Lucy was like a second mother to me, especially when I spent the summer of 1985 (40 years ago!) with them in Allentown, working at the family jewelry and clock store. I didn't realize at the time that she was 62 years old (which would have seemed extremely old to me back then); she always seemed young and energetic, even years later when she was complaining about various aches and pains. To imagine (to witness, really) that she led an active life for another 40 years after that reinforces that feeling of almost surprise that she is gone.

I'm not sure how to finish this. I will try to get back to work on my writing now. More updates as needed!