Keys to the Demon Prison by Brandon Mull, now you can read online.
Chapter 1 A Dying Wish
Seth knew he should not be here. His grandparents would be furious if they found out. The dismal cave smelled more rancid than ever, like a nauseating feast of spoiled meat and fruit. Almost steamy with humidity, the wet air forced him not only to smell but also to taste the putrid sweetness. Every inhalation made him want to retch.
Graulas lay on his side, chest swelling and shrinking with labored, hitching breaths. His infected face rested against the rocky floor, inflamed flesh flattened in a sticky mass. Although the demon's wrinkly eyelids were shut, he twitched and grunted as Seth drew near. Groaning and coughing, the bulky demon peeled his face away from the floor, one curled ram horn scraping the ground. The demon did not fully arise, but managed to prop himself up on one elbow. One eye opened a fraction. The other was fused shut by congealed goo.
"Seth," Graulas rasped, his formerly rumbling voice weak and tired.
"I came," Seth acknowledged. "You said it was urgent." The heavy head nodded slightly. "I ... am ... dying," he managed.
The ancient demon had been diseased and dying since Seth had first met him. "Worse than ever?"
The demon wheezed and coughed, a cloud of dust rising from his lumpy frame. After spitting out a thick wad of phlegm, he spoke again, his voice little more than a whisper. "After ... long years ... of dwindling ... my final days ... have arrived."
Seth was unsure what to say. Graulas had never tried to hide his nefarious past. Most good people would be relieved to hear of his demise. But the demon had taken a liking to Seth. After becoming intrigued by Seth's unusual exploits and successes, Graulas had helped him figure out how to stop the shadow plague, and had further assisted him in learning to use his newfound abilities as a shadow charmer. Whatever crimes Graulas may have committed in the past, the moribund demon had always treated Seth well.
"I'm sorry," Seth said, mildly surprised to find he really meant it.
The demon trembled, then his elbow collapsed and he flopped flat against the ground. His eye closed. "The pain," he moaned softly. "Exquisite pain. My kind ... dies ... so very slowly. I thought ... I had sampled ... every possible agony. But now, it burrows... twists... gnaws... expands. Deep inside. Relentless. Consuming. Before I can master it ... the pain increases... to new plateaus of anguish."
"Can I help?" Seth asked, doubting whether anything from the medicine cabinet would do the trick.
The demon snorted. "Not likely," he panted. "I understand ... you will leave tomorrow."
"How did you know that?" His mission the next day was supposedly a secret.
"Confide ... no plans ... to Newel and Doren."
Seth had not provided the satyrs with details. He had just told them he would be leaving Fablehaven for a time. He had been at the preserve for more than three months, ever since he and the others had returned from Wyrmroost. He had enjoyed several adventures with Newel and Doren in the interim, and felt he owed them a good-bye. Grandpa would only let them discuss the mission in his office with spells to help prevent spying, so Seth had shared no specifics, but he probably should not have said anything at all to the satyrs. "I didn't give them details," he told Graulas.
"No ... but I heard them mention your departure ... as they moved about the woods. Although ... I can't see into your house ... I can deduce ... you seek another artifact. Only such ... a mission ... would prompt Stan to risk ... your safety."
"I can't really talk about it," Seth apologized.
Graulas coughed wetly. "The details are unimportant. If I heard and guessed ... others may have heard. Though I cannot... see ... beyond the preserve ... I can sense much outside attention focused here. Mighty wills straining to spy. Be on your guard."
"I'll be careful," Seth promised. "Is that why you called me here? To warn me?"
One eye cracked open and a faint smile touched the demon's desiccated lips. "Nothing so ... altruistic. I am soliciting a favor."
"I may ... expire ... before you return. Which would render my wishes ... irrelevant. After all this time ... my days are truly numbered. Seth ... not only ... my physical pain ... troubles me. I am afraid to die."
Graulas grimaced. "You do not understand. Compared to me ... you have little to fear."
Seth scrunched his brow. "You mean because you were bad?"
"If I could ... evaporate ... into nothing ... I would welcome death. But this is not the case. There are other spheres awaiting us, Seth. The place prepared for my kind ... when we exit this life ... is not pleasant. Which is partly why demons cling to this life for as long as we can. After how I lived ... for thousands of years ... I will have to pay a steep price."
"But you're not the person you were," Seth said. "You've helped me a lot! I'm sure that will count for something."
Graulas huffed and coughed differently than he had before. It almost sounded like a bitter chuckle. "I meddled with your dilemmas ... from my deathbed ... to amuse
myself. Such trivialities will do little to offset centuries of deliberate evil. I have not changed, Seth. I am merely powerless. I have no drive left. As much pain as I am now enduring, I fear that the afterlife ... will hold far greater agonies."
"So what can I do?" Seth wondered.