Chapter 11
Imagine you’re shipwrecked on an island inhabited by only Knights and Knaves. Knights always tell the truth. Knaves always lie. There is no way to distinguish between the two just by looking at them. The only way to separate the liars from the truth-tellers is by asking them questions.
For example, suppose you encounter two islanders. Let’s call them A and B. You ask A, “Are you a Knight or a Knave?”
A responds by saying, “At least one of us is a Knave.”
B is silent.
Who is a Knight and who is a Knave?
The answer is easy. A cannot be a Knave, because if so, his statement would be truthful, and Knaves always lie. Therefore A must be a Knight, and telling the truth. Which would mean B is a Knave.
In real life, of course, there are no such things as Knights, those absolute keepers of the truth.
Everyone lies about something.
It was a perfectly normal school morning in the Campbell household—disorganized, chaotic and at least one of my children was running around half-naked—right up until the moment the police arrived at our front door to question me in connection with the death of Howard Grant.
Before the doorbell rang—before everything changed—my most pressing concern was not to overcook the eggs I was scrambling for our breakfast.
I had learned through practice and error that the key to perfectly scrambled eggs was to keep the heat low. As I slowly stirred the eggs with a flat whisk, a flash of movement outside caught my eye. I turned to glance out the kitchen window, which overlooked our side yard and the street beyond. Our next-door neighbor Judy Ward was walking her fat dachshund, Rocket, down the sidewalk. Judy was carrying a green plastic bag of dog poop in one hand and Rocket’s leash in the other. The dog was panting so heavily, he looked like he was about to keel over.
“Mom, where’re my shorts?” Liam yelled from his room, which was located on the other side of our one-story house. When I didn’t answer, he shouted again. “Mom! I can’t find my uniform shorts!”
I drew in a deep breath and counted to five to stop myself from yelling back that if my son needed something, he should walk across the house and ask me politely. Sure enough, the thud-thud-thud of large thirteen-year-old feet stampeded across our ceramic tile floor. Liam appeared in the kitchen, wearing only a navy polo shirt with his school logo on it and white cotton briefs. Liam had my husband’s unruly dark curls and lopsided smile, but his wide, pale blue eyes and long, straight nose came from me. He was getting so tall, officially a teenager, but still child enough to run around in his underwear. I loved him so, this wild boy of mine.
“I can’t find any clean shorts,” Liam said. He balanced on one leg like a crane and began to hop in place.
“Why are you hopping?”
“Because I can,” Liam said carelessly. “Have you seen my shorts?”
“Did you look in the dryer?”
Liam snapped his fingers. “The dryer,” he repeated, drawing out the word and then hopping out of the room. I smiled, watching him go.
“Breakfast will be ready in five minutes. And don’t forget your belt,” I called after him. Despite going to the same school with the same dress code for seven years, Liam still forgot to put on a belt at least every other day.
“I know!” he yelled back.
I turned the burner off under the eggs, pulled out a loaf of whole wheat bread from the pantry and started on the toast. I noticed that the pears in the wire fruit bowl were starting to look bruised. I picked one up, and the flesh gave way, my fingers sinking into the rotten fruit. I shuddered and tossed it in the garbage.
“Mom?”
This
