Which Wych Elm?

The answer to the titular question is: the wych elm in the garden of Ivy house, the one keeping a sordid secret-- but it's going to take some preliminary reading to learn this, and some of it isn't going to be pretty: brain damage, brain cancer, and a lucky, privileged young man brought to his knees by events from his past-- events that had consequences that he was oblivious to then but are horribly apparent now . . . I'll say no more, aside from the fact that The Wych Elm is another masterful mystery from Irish-American author Tana French.

Puzzling

I've been consuming loads of crime stuff: The Fall, True Detective, The Skeleton Road, The Fifth Witness . . . so you'd think my investigative skills would be on fleek, but the following mysteries in my life still remain unsolved:

1) two weeks ago, the garbagemen took the recycling on Wednesday instead of Thursday;

2) both my jump shot and my hairline have diminished on the same timeline;

3) even though Rudy was totally cheesy, it still made me cry.