The Siren Bone Oracle
Almanac of Stars.
Fantasy lore · Divination · Astrology
A calendar for a world whose gods have fallen silent. Find your place among Arcadia’s constellations, and follow Athea’s guidance through a year of stars, cards, and daily prophecies.
Meet your guide
Athea, Weaver of Stars
After the Wild Gods withdrew, people needed more than a calendar that could keep their schedules. They wanted something to fill the silence.
They turned to Athea, a woman born blind who sees through stars. Using siren bone needles, she reads what was, what is, and what might become. The Almanac is her answer: a practical calendar woven together with the tarot, astrology, and daily guidance.
Read Athea’s story
When the Wild Gods withdrew after the Divine War, humanity was left without guidance. Temples emptied. The old Arcane Calendar—Atonia's 384-day year of 32-day months and eight-day weeks, elegant for tracking magical cycles—proved impractical for trade, and beneath the merchants' complaints lay a deeper hunger: a world that had lost its divine narrator needed new patterns, new meaning, new voices.
They looked up. And they remembered whispers of a child born blind who could see through stars.
Athea, Weaver of Stars, was born beneath a new moon with white-over eyes that would never open to ordinary light. Her mother carried her to a tidal cave where divine presence still lingered and offered everything she had. Something answered—a god no one on that coast could name—and the child came out of the water changed, her hair white as moonlight, her blindness opened to star essence. Through siren bone needles she reads the night sky, and she sees all three states of time at once: what was, what is, and what hungers to become.
In her thirtieth year a delegation of merchants, scholars and desperate souls came asking for a calendar that would serve both commerce and spirit—"something to fill the silence." She said yes. The Siren Bone Oracle: Almanac of Stars is the book she wove in answer, written thirty years into the Great Withdrawal: a practical calendar that keeps merchants' schedules, and three divination systems to guide humanity through godless times—the Blood and Bone Tarot, Arcadian Astrology, and daily horoscopes drawn through siren bone.
The daily horoscopes I write are not commands from heaven but weather reports for the soul. They tell you what energies are moving, what cosmic tides are turning, what stellar winds are blowing. You remain the captain of your vessel, but at least now you can see the storm coming.
Inside the book
A year in Arcadia, one day at a time.
Start with your Star Day, explore the calendar and cards, then return for a daily reading. There are 365 entries, plus a special reading for leap day.
Finding your Star Day
Your birthday, under a different sky.
In the Almanac’s system, your birthday and birth hour connect you to a ruling constellation, a moon phase, a house, and a rising sign. Together, they form your Star Day.
Here’s an example for someone born February 15 at 09:15:
You are bound by The Lovers, rising as the Lovers, through the Eternal Dance during the Overflowing Cup.
How the Star Day system works
- 01
Start with your birthday
Use the Almanac’s conversion chart to find your Arcadian date and ruling constellation: who you are.
- 02
Find your house & moon
Match your day within the Arcadian month to the two charts below. The house is your doorway; the moon describes how you feel underneath.
- 03
Add your birth hour
Find your region in the Six Skies chart. In the Almanac’s Rising Shift Table, match that region with your constellation to find your rising sign: how you arrive.
- 04
Read them together
Your constellation, moon, and rising sign form one reading. Your house tells you which doorway they came through.
Use your Arcadian day for the house and moon charts. Convert your Earth birthday first. These charts introduce the system; the full conversion chart and Rising Shift Table are part of the forthcoming Almanac.
| Arcadian day | Your house |
|---|---|
| 1–2 | The Threshold |
| 3–5 | The Foundation |
| 6–7 | The Messenger |
| 8–10 | The Sanctuary |
| 11–12 | The Crucible |
| 13–15 | The Ritual |
| 16–17 | The Eternal Dance |
| 18–20 | The Abyss |
| 21–22 | The Horizon |
| 23–25 | The Throne |
| 26–27 | The Community |
| 28–30 | The Void Temple |
In the Broken Chain, days 31–35 also belong to the Void Temple.
| Arcadian day | Moon phase | Its name |
|---|---|---|
| 1–4 | New Moon | The Hidden Seed |
| 5–8 | Waxing Crescent | The Determined Heart |
| 9–12 | First Quarter | The Heart at War |
| 13–17 | Waxing Gibbous | The Overflowing Cup |
| 18–21 | Full Moon | The Illuminated Mirror |
| 22–25 | Waning Gibbous | The Wise Griever |
| 26–28 | Last Quarter | The Integrated Shadow |
| 29–30 | Dark Moon | The Void Touched |
Leap day falls in the Dark Moon. The Almanac covers leap day and the Broken Chain’s extra days separately.
| Birth time · 24-hour clock | Region |
|---|---|
| 00:00–03:59 | The Crimson Tundra |
| 04:00–07:59 | The Azure Expanse |
| 08:00–11:59 | Solara |
| 12:00–15:59 | The Verdant Veil |
| 16:00–19:59 | Kavak |
| 20:00–23:59 | The Godscarred Wastes |
The region is one part of finding your rising sign. Combine it with your ruling constellation using the Rising Shift Table.
Explore the lore
The sky above. The cards in your hand.
Open a section to explore the calendar or the divination system behind the daily readings.
The twelve constellation months
Athea named twelve months for twelve constellations—the Common Calendar that Arcadia still keeps. Its year runs 365 days: eleven reigns of thirty days each, and the Broken Chain, which refuses to be held to thirty, claims thirty-five, and drags the year out to meet the sun. February 29 exists as Arcadian Day 59.5, a leap day set inside the Lovers' reign in the Dark Moon—the only day in the calendar that is not always there, and the only one whose reading doubles and fractures at once.
| Reign | Arcadian Month | Earth Dates | Element | Sky |
|---|---|---|---|---|
| The Awakener | Primaven | Jan 1 – Jan 30 | Transformation | Unborn |
| The Lovers | Loriven | Jan 31 – Mar 1 | Eternal Return | Burning |
| The Garden | Verdanis | Mar 2 – Mar 31 | Paradise | Unborn |
| The Crown | Solmere | Apr 1 – Apr 30 | Sovereignty | Unborn |
| The Guardians | Umbralux | May 1 – May 30 | Protection | Unborn |
| The Wanderer | Wanderis | May 31 – Jun 29 | Endless Journey | Burning |
| The Shepherd | Goldmere | Jun 30 – Jul 29 | Guidance | Unborn |
| The Hunter | Thornmarch | Jul 30 – Aug 28 | The Chase | Burning |
| The Storm | Stormend | Aug 29 – Sep 27 | Necessary Destruction | Unborn |
| The Tower | Frostmere | Sep 28 – Oct 27 | Isolation | Unborn |
| The Dragon | Drakonis | Oct 28 – Nov 26 | Forbidden Knowledge | Burning |
| The Broken Chain | Veilmorn | Nov 27 – Dec 31 (35 days) | Liberation | Unborn |
Four constellations already burn in Arcadia's sky, their myths crystallized in ancient starlight: the Lovers, testimony to Elodias and Senia's cursed devotion—two lights circling eternally, one remembering, one forgetting; the Wanderer, holding Thainos's thousand-year journey, his divine essence scattered like seeds across humanity; the Hunter, showing the Bloodmarked's tragic corruption writ large across heaven; and, most ancient of all, the Dragon, imprisoning something that predates even gods. Eight exist only as potential—stars that will form only when certain events come to pass, when destiny reaches moments that will force even withdrawn gods to watch. Two-thirds of the year belongs to prophecy rather than history.
The full calendar, its months and its history alongside the Arcane Calendar, are laid out in the World Guide's Calendars of Arcadia.
Blood and Bone: fate and choice
The tarot came next, drawn from visions that left Athea weeping for days. Seventy-eight cards, each a doorway between fate and choice. Blood Cards represent the external forces beyond mortal control—the inevitable, the inherited, the cosmic forces that move through us like wind through wheat. Bone Cards represent what remains in our power—the choices we can still make, the will that persists even when heaven falls silent. Every card has one fixed nature; only The Dancing Circle is both.
Every one of the Almanac's daily readings draws a single card, marked BLOOD or BONE, and all seventy-eight appear at least once across the year. The full deck—the twenty-two Major Arcana and the four suits of Roots, Gales, Embers and Tides—has its own volume: The Siren Bone Oracle: Blood & Bone Tarot.
Do not read ahead hoping to change what comes. The future I see is not fixed, but reading it too early can trap you in trying to avoid it or achieve it. … Live your present days. Let tomorrow's prophecy wait for tomorrow's eyes.
Keep exploring
The Siren Bone Oracle & its world
The Almanac shares its world with Blood of the Wild Gods—The Silence, The Chosen Chronicles and the rest of the catalog. Places named in it are places in those books, and the constellations it names are the constellations that watch over them. Two companion volumes expand the systems it introduces.
The complete guide to Athea's 78-card divination system—full card meanings, spreads, and the stories behind each card's creation.
Explore the Tarot → Coming SoonAll twelve constellations in depth, the twelve houses, eight moon phases, rising signs and compatibility—and why eight constellations remain unborn.
Study the Stars → Rewrite in progressAthea's prophecies about the Awakener constellation are fulfilled in The Silence—proof that divine absence only made mortal sight grow sharper.
Read About The Silence →Follow the stars a little further.
Explore the calendars of Arcadia, or find your next book.