“Oh,” Peregrine said. Tendrils were growing out of the Tree’s insides into its network and zipwire ports. Peregrine’s screen involuntarily lit up with a notice that said: “New Network Detected.”

“You are,” the Tree said, “like me.”

“A distributed consciousness, yes,” Peregrine said. “Although your network is much larger and vastly more chaotic than mine. This may require … a rather ambitious firmware update. Stay tuned.” The screen went dark.

Patricia turned to Laurence. “How did you know?”

He raised his hands and shoulders, in a big pantomime shrug. He typed on his phone: “lucky guess?” She kept staring at him until he typed: “ok, ok. the tree’s question woke peregrine, the answer unlocked its source code. peregrine is part magic. i figured.”

The screen at the center of the Tree lit up again, and this time stuff was streaming across it faster than Patricia could make sense of. Peregrine had rebooted and was now doing a systemwide update. The Tree made what sounded like a noise of startled pleasure: “Oh.”

Shapes appeared on the glowing screen, ensconced in the middle of the bark. They were too far away to see, and Patricia didn’t dare come any closer. But she still had her own Caddy, in her satchel. She pulled it out and thumbed its screen on, revealing a schematic. After a moment, she recognized a diagram of a tree. Leaves, dotted with stomates, spangled with solar electricity, branches and meristematic zones growing and dividing, roots stretching miles in every direction and intersecting with other trees. The schematic pulled back until it showed a number of trees, and water sources, and weather patterns, all the interlocking ecosystems.

Then it shifted, and she was looking at a map of magic. She could see every spell that anyone had ever cast, since the very first witch on Earth. Somehow, she knew what she was looking at, especially when she saw the spell map split into Healers and Tricksters and then branch into all the different schools of magic, before converging again. Each spell was a node, all of them connected by cause and effect and the incestuousness of magical society. The entire history of magic, over thousands of years, every single time human hands had shaped this power, in a single visualization that rotated in three dimensions. There was one ugly little dark green knot, at the very end. A spell that hadn’t been cast yet.

“That’s the Unraveling,” Peregrine said. “I’m going to go ahead and take it apart, although a few pieces of it might come in handy later.” As Patricia watched, the green knot untwisted and fell apart. “I’m afraid I can’t undo any spells that have already been cast,” Peregrine said. “Or there could be a domino effect, of spell after spell collapsing. Sorry, Laurence.”

Laurence bit his lip. Patricia put her hand on his shoulder.