Unknown (main narrator, possibly Aaron Tracy)

Namely, Dahl is still married,

Dahl and Felicity do their best to keep the affair secret from Neil, and from all of their children.

And remarkably, they get away with it for years.

Whenever he wants to talk to Felicity, Dahl drives to a phone booth in town, rather than risk using the home phone.

In the end, it's poor Tessa, the daughter who watched her brother get hit by a car, watched her older sister succumb to measles, and watched her mom have a stroke from the bathtub, who eventually discovers the affair.

Tessa had quit school at 16, hating her boarding school almost as much as her father famously hated his.

She decided to move back home to help her father take care of her mother, who still needed assistance after the strokes.

Late one night, it's raining terribly, so Dahl decides not to go outside and drive to the phone booth.

He takes a chance and calls Felicity right from the landline.

Tessa overhears her father whispering.

I heard him have this phenomenally amorous conversation, she remembers, which was nothing like I'd ever heard him have with anyone else in my life, certainly not Mom.

She confronts her father about it.

He blows up at her, embarrassed and also absolutely terrified that this will be what brings the affair to an end.

Dahl puts the 16-year-old in an impossible spot and begs her to talk with Felicity before she reveals the affair to her mother.

Think about that for a second.

Asking your teenage kid to step into the middle of your adult relationship drama?

But Tessa agrees to do it.

She sits down with Felicity alone.

We don't know exactly what was said, but we do know the outcome.

Tessa decides to keep her father's secret.