dripping wood, the only sound the squish-squish of their boots in the mud, until the drizzle gave way to intermittent sunlight. Holly halted at the stream, which was even more engorged than it was the day before.
âThatâs the tree bridge I found.â She pointed downstream.
âOh yeah,â said Everett. âIâve crossed that way loads of times.â
âOf course you have,â Holly muttered.
Her cumbersome poncho slowed her down, and the boys got farther and farther ahead. At one point it snagged on a thorny shrub. She yanked it free and lurched forward. Her boot sank into the muck and stuck fast. âIâm coming!â she called ahead, though no one answered. Typical. She grabbed the loops of the boot and braced herself against a sapling, preparing to yank her foot free. But something caught her eye in the gurgling water.
Several smooth river rocks were embedded in the near bank, as if someone very small had built a stone spigot. Out of it poured a stream of clear water.
Holly peered at itâwas it a pipe from a sewer line? But she could see none. She held out her finger to the stream, then drew it quickly back.
The arctic water burned her fingertips. Under her poncho, safe in its leather scabbard, the iron key vibrated. Holly pulled it out. Suddenly she heard the familiar hum that had been missing from the wood: a steady flow of current like from a live wire. Magic was still alive in this forest. And the key . . .
It started to pulse in a patternâa short buzz followed by two long vibrations, then a distinct pause. Over and over, buzz-vibrate-vibrate . As if sheâd set it as a ring tone.
It was calling her.
âHey, are you coming or what?â said a whiny voice beside her.
She startled, nearly dropping the key into the rushing current. âGosh, Ben, way to sneak up on a person.â
âWeâve been waiting at that tree bridge forever. Are you stuck?â
âIâm listening.â
âWhatâs going on?â called Everett.
âSheâs listening .â Holly refused to look at Ben, though she knew he was rolling his eyes.
Everett walked up and took hold of Hollyâs handâthe one closed around the key. She wanted to shake him off, but he stood very still. He was listening too.
âCan you feel something?â Ben grabbed her other hand. Holly remembered how this worked; they could only feel the keyâs vibrations through her. âWow!â
âHush,â said Holly.
âNo, wait,â said Ben. âItâs like . . . itâs Morse code.â
The other two stared at him. âSince when do you know Morse code?â Everett asked.
âThey use it on Planeterra Six, the deluxe edition.â Of course he was talking about his favorite computer game. âSee, in order to enter the alien kingâs mother ship, youâve gotta crack this pass code, which is set in a series of dots and dashes. As if that wasnât hard enough, you have to negotiate with this six-eyed dude from Alastra, whoâs got a complicated social ritualââ
âBen!â Holly interrupted. âDo you know what this means or not?â
âYeah, itâs a W . Just the letter W , over and over again.â
The three of them fell quiet as the key continued to pulse.
W  . . . for water ?
âSee these weird rocks, like a pipe or something?â Holly said. âThe key is trying to tell us something about the water, like Mr. Gallaway said.â
A shrill screech sounded above their heads. The red parrot landed on a high branch, looking at her very hard with one black eye.
Telling her something.
Holly dropped the boysâ hands and thrust the key beneath the stone spigot. The water poured over it, freezing it to her fingers. She gritted her teeth; the key was still pulsing its letter W , faster now. She couldnât pull away until it was finished, but finished