Mystery #4 — Who Untied the Canoe?

Henry came tearing up the path from the creek, waving his arms. "Mr. Bradley! The canoe's floating away! THE CANOE'S FLOATING AWAY!"

Mr. Bradley threw down his mug and ran. When he got to the creek, sure enough, the bright green canoe was about twenty feet downstream, stuck in some reeds. The end of Mr. Bradley's best rope was dangling from the oak tree.

He waded in, grabbed the canoe, and dragged it back, grumbling the whole time. "I tied that knot myself. Double wrap. A bear couldn't undo it."

Mr. Bradley tied the canoe back up with three knots this time. Then he turned around and gave the troop the famous Mr. Bradley Eyebrow. "Alright, men. Who was down here before breakfast?"

Mr. Bradley pointed at Jack first, because Jack was already scratching his neck like a guilty man.

"Okay—okay, so I came down to look inside the canoe. Luke said sometimes fish swim into it overnight—"

"Well, SOMEBODY said it. Anyway, I leaned way over the side to look. And I was holding the rope so I wouldn't fall in. And I might have tugged on it. A lot. I'm really sorry."

"No sir! I swear! I just pulled on it to steady myself! When I let go, the knot was still tied, I saw it! It was still tied when I walked back up to camp!"

Luke stepped forward. He was, without exaggeration, the muddiest human on planet Earth. Mud to his elbows. Mud across his forehead. Mud drying on his eyebrows.

"No sir. I was on the OTHER side of the creek the whole time. My footprints prove it. The mud bank is all churned up where I was, and the side by the oak tree doesn't have a single mud print on it."

Mr. Bradley walked over and checked. Luke was right. The grass by the oak tree was clean and dry. Luke's muddy trail was way off on the other side.

Henry stepped forward, all smiles. "I was practicing my bowline, sir. For my knot-tying badge. I sat on the big rock right over there, with my own piece of practice rope." He held up a short piece of rope dangling from his belt loop. "I wasn't anywhere near the canoe. Luke can tell you. He waved at me from the other side."

Henry smiled. Mr. Bradley did NOT smile back. Instead, Mr. Bradley was looking at Henry's practice rope very, very carefully.

Mr. Bradley turned the rope over in his hands. Then he walked over to the oak tree and crouched down where the canoe rope had been tied. He looked at the end of the canoe rope. He looked back at Henry's practice rope. He looked at the oak tree trunk.

"Number one." Mr. Bradley held up the end of the canoe rope. "This knot did not come undone by wiggling. The end of this rope is perfectly clean. If Jack had tugged it loose by accident, the end would be frayed and fuzzy from all the rubbing. Look. It's crisp, like someone untied it on purpose and then let the end drop.

"Number two." Mr. Bradley held up Henry's practice rope next to the canoe rope. "Your practice rope has the exact same fresh fibers on it. Same color wear. Same kind of fresh rub. Like you had been practicing taking a certain knot apart—like, say, this knot—over and over.

"Number three." Mr. Bradley pointed at the base of the oak tree. "There are only two sets of footprints in the dew-wet grass by this tree. One set belongs to Jack—those sneakers have that little star pattern the rest of you don't have. The other set is barefoot. A boy with his shoes off. And Henry… where are your shoes?"

The Answer: Henry untied the canoe on purpose! Jack was a red herring—he really did wiggle the rope, but he left the knot still tied, exactly as he said. Three clues prove it was Henry:

The end of the canoe rope was crisp and clean, not frayed. A knot that comes undone by accident leaves the rope end fuzzy from all the rubbing. This knot was untied on purpose.
Henry's practice rope had the exact same fresh wear pattern—which meant he'd been practicing UNTYING a knot like this one, not just tying a bowline.
Barefoot footprints in the dew by the oak tree. Jack had sneaker prints. Henry had gone barefoot to sneak down without leaving obvious tracks.

Henry's face turned the color of a tomato. "I—I just wanted to see if the creek would carry the canoe all the way to the bend. As a joke. I was going to pull it back before anyone noticed. But it floated faster than I expected, and then I panicked, and then I ran up pretending I just FOUND it. I thought nobody would figure it out because Jack had been tugging on the rope."

Mr. Bradley put his hand on Henry's shoulder. "Two things wrong with that plan, son. First, practical jokes that could break a canoe or scare your troop aren't jokes—they're trouble. Second, framing Jack? Letting your buddy take the blame for something YOU did? That's the part that really hurts."

Henry looked at Jack. "Jack. I'm really sorry. I was going to let you take the heat for it."

Jack crossed his arms. Then he uncrossed them. Then he sighed. "You're lucky I like you, Henry. You owe me the biggest s'more of the whole trip."

"Deal."

For the rest of the weekend, Henry was on KP duty washing dishes after every meal. And on the last night, he made Jack a s'more the size of both his hands.