Encountering the King in Yellow in 1980s Japan
We exist without ever knowing
If this world
Is a dream or reality,
Reality or a dream.
— Kokin Wakashū, Volume 18, Misc. Poems
“No. 942,” anonymous
Forgotten for centuries, the Sutra of Pale Leaves has resurfaced in 1980s Japan—a time of excess, conspicuous consumption, and enormous technological changes.
An All New Setting

This Call of Cthulhu supplement takes you to the Japan of the 1980s. It is a time when the generations are at odds, yakuza gangs are thriving, and the traditional world is at war with modernity. Ancient creeds, gods, and spirits vie to keep their toe-hold in this new world of capitalist opportunity—and overworked and overwhelmed humans turn in desperation to spiritual organizations that promise release and new meaning. This is a world that needs the Prince of Pale Leaves—and he answers the call.
The King in Yellow Reimagined

While Call of Cthulhu is home to many entities who inflict nothing but destruction and suffering, The King in Yellow—in his guise as the Prince of Pale Leaves—is different. He is here to help. Those who cry out to him lose their minds and souls, but it will be far worse for the rest of us. This book also includes a comprehensive guide to the Sutra of Pale Leaves itself, covering the insidious effects of the text, the cults associated with the Yellow King, and an array of new Mythos monsters for use in any Call of Cthulhu game.
Three New Scenarios
The book contains three all-new scenarios that are suited to stand-alone play, or strung together as part of a larger campaign set in 1980s Japan.
Dream Eater
The investigators are called to a district in Ikaruga town after cases of sleep paralysis, lethargy, and depression skyrocket—and all cases reportedly include visions of the same strange creature.
Fanfic!
When the inspiration behind an upcoming action manga is proved to have nefarious origins, the investigators must intervene before widespread publication causes unparalleled damage to reality.
The Pallid Masks of Tokyo
The corpse of a gang member is discovered in Shinjuku—but its face is devoid of all features. The investigators are drawn into the mystery and must attempt to find the source of, and stop, a rash of faceless gangsters across the city.
The Sutra of Pale Leaves - Two Suns Rising is designed for use with the Call of Cthulhu: Keeper Rulebook, and optionally with Pulp Cthulhu.
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What The Critics Say
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“Has Chaosium finally created the next Masks of Nyarlathotep?Twin Suns Rising stands out from most Call of Cthulhu scenario collections for two reasons: It’s not based in the 1920s-30s, and it is based in Japan, which loves Call of Cthulhu more than Western audiences.”
— TTRPG Insider, Has Chaosium Finally Created the Next Masks of Nyarlathotep?.
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“Ultimately, The Sutra of Pale Leaves: Twin Suns Rising represents one of the most sophisticated and daring experiences ever published for Call of Cthulhu… It is a campaign for those seeking something new: a horror that deals with culture, language, memory, identity, and alienation, and that uses roleplaying as a means to explore the fragility of reality.”
— Serial Gamer, Call of Cthulhu 7E – The Sutra of Pale Leaves: Twin Suns Rising – The Prince's Shadow – Review.
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Physical Product Name: [Call of Cthulhu: The Sutra of Pale Leaves - Twin Suns Rising - Hardcover]
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- Publisher(s):
- Chaosium and Sons of Singularity
- Year Released:
- 2025
- Ruleset:
- Call of Cthulhu 7th Edition
- Format:
- Full Color Hardcover
- Page Count:
- 192
- ISBN:
- 9781568825359
- Authors:
- Damon Lang, Andrew Logan Montgomery, Jason Sheets, Yukihiro Terada
- Cover Artist:
- Kasumi Lang
- Interior Artists:
- Jesse Covner, Kenaz Covner, L. Hsiang, Kasumi Lang, Damon Lang, Jennifer S. Lange, Malena Sheets, Susan Sheets, Wayne Miller, Yukihiro Terada
- Cartography and Handouts:
- Jesse Covner, Adam Szelążek, Jamie Coquillat
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Call of Cthulhu 7E – The Sutra of Pale Leaves: Twin Suns Rising – The Shadow of the Prince – Review
Available for preorder since May 28 with an advance PDF and arriving in a hardcover physical edition from Wednesday, June 11, 2025, The Sutra of Pale Leaves: Twin Suns Rising is a substantial campaign for Call of Cthulhu Seventh Edition, published by Chaosium Inc. and crafted by the talented publisher Sons of the Singularity facebook.com +9 serialgamer.it +9 chaosium.com +9 . It’s the first volume of a broader project, which will continue later this year with The Sutra of Pale Leaves: Carcosa Manifest, completing one of the most ambitious works dedicated to the Mythos of Hastur. The campaign will be previewed live on the Serial Gamer Italia Twitch channel: scheduled for Wednesday, June 11 at 21:30 CET, continuing weekly every Wednesday night, with yours truly as Keeper alongside experienced players serialgamer.it . The beating heart of Twin Suns Rising is its setting: Japan during the “Bubble” period—the brief but intense economic and cultural boom of the mid-1980s, an era of neon lights, idol pop, ubiquitous manga, financial excess, and a headlong rush toward modernity. But beneath the glittering surface lurk unease, contradictions, and repressed desires—a fertile ground for a memetic cult that leverages contemporary media, social obsessions, and twisted spirituality to infiltrate reality serialgamer.it . The campaign’s structure is modular, designed for both standalone sessions and extended arcs: in Twin Suns Rising are three scenarios set between 1986 and 1987—Dream Eater, Fanfic, and The Pallid Masks of Tokyo—each independent yet tied by a coherent, pervasive narrative thread: the Sutra itself, a “sentient analog code” that appears as a sacred book but is actually an ideological, viral weapon meant to alter minds and subvert reality facebook.com +8 serialgamer.it +8 chaosium.com +8 . The overall tone leans more toward Robert W. Chambers’s The King in Yellow than traditional Lovecraft: the threat isn’t an alien deity but a contagious concept—a lethal piece of information that seeps into thought, art, and dreams. The “Prince of Pale Leaves” is a protean entity whose presence becomes more concrete and oppressive as the characters delve into the campaign’s narrative web. Reality itself starts to wobble, along with the investigators’ certainties serialgamer.it +1 chaosium.com +1 . The atmosphere is fascinating and tense: from the quiet, spiritually charged streets of a small Kansai village to Tokyo’s frenetic electronic nights—nightclubs, underground manga studios, cults disguised as art trends. The historical reconstruction is impressive, supported by high-quality cultural and historical research. Each scenario is enriched with realistic details about 1980s Japanese customs, technology, and social dynamics, never feeling didactic . One of the campaign’s greatest strengths is its variety of tones and genres: Dream Eater carries a strong spiritual, dreamlike component—a twisted fairy tale blending Japanese folklore and Lovecraftian nightmares. Fanfic ventures into metanarrative territory within manga fandom and narrative obsession, where reality and fiction disturbingly intertwine. The Pallid Masks of Tokyo delivers a decadent, psychedelic urban horror, with nods to Carcosa, the Yakuza, and metropolitan club culture aesthetics serialgamer.it +1 chaosium.com +1 . From a gameplay standpoint, The Sutra of Pale Leaves is suitable for “ordinary” characters—students, salarymen, artists, tourists—rather than seasoned occult investigators. You don’t need monster-hunting experts; in fact, the horror lands more powerfully when it hits mundane lives. The campaign is balanced for three to six investigators and supports both classic Call of Cthulhu and Pulp Cthulhu systems with minimal adjustments. It also allows a tonal shift as reality’s laws change within the fiction x.com +8 serialgamer.it +8 chaosium.com +8 . A welcome addition is the six pregenerated characters offered for free by Chaosium on its website: each is well-defined with a coherent background and narrative ties integrated into the first scenario. They’re designed to provide dramatic prompts and are ideal for groups that want to dive straight into the game without character creation—but they’re also customizable, with options to change gender, name, nationality, etc. The manual specifies that each character should be personalized a bit, with 50 skill points still to allocate. Every character has motivations for being involved in the story, and their thematic links to the Sutra or Japanese culture strengthen narrative cohesion serialgamer.it . The manual also gives solid tools for the Keeper: each scenario includes flowcharts for narrative structure, cultural insights through “Lore Sheets,” and suggestions for tone adjustment based on the group. Challenges are meant to be overcome via cunning, interpretation, and roleplaying—not violence—coherently aligned with the setting and the conceptual nature of the horror presented serialgamer.it . On the editorial side, the volume is gorgeous. The graphics blend different styles (ukiyo-e, manga, art nouveau) coherently with the campaign’s kaleidoscopic aesthetic. Illustrations are functional as well as decorative, reinforcing the atmosphere. Layout and mapping are notable; settings feel vivid and well defined, and the included support materials (also available online) encompass handouts, player maps, and the six pregenerated characters serialgamer.it . The thematic content is mature and not devoid of disturbing elements: death, suicide, abuse, obsessions, mind control. The manual rightfully includes a detailed content warning and urges the Keeper to use safety tools at the table. In this sense, The Sutra of Pale Leaves demands sensitivity and awareness but delivers a deeply unsettling, reflective, and powerful narrative experience serialgamer.it . In conclusion, The Sutra of Pale Leaves: Twin Suns Rising stands as one of the most sophisticated and daring experiences ever published for Call of Cthulhu. It’s a campaign for those seeking something new: a horror that explores culture, language, memory, identity, and alienation, using tabletop role‑play to probe the fragility of reality. It’s not for everyone—it requires dedication, study, and a group willing to fully immerse in a rich, layered world. But for those ready to heed the Sutra’s call, the journey will be absolutely unforgettable