Athreos

The River Guide straddles the line between life and death, maintaining the cosmological balance with no regard for the morals and emotions of mortals. Athreos’s champions seek to further his goals, and rarely do so with greater sympathy than their grim patron.

God of Passage All mortals are destined to face Athreos, the River Guide, when their lives come to an end. The god of passage ferries the dead across the Tartyx River, conveying each mortal soul to its destiny in the Underworld. For most people, Athreos embodies the greatest mysteries of existence—the terror and wonder of life’s last moment and the revelation of one’s ultimate fate in the afterlife. Athreos is no judge, though. The veiled, silent god undergoes no deliberations and makes no exceptions. The River Guide reads the truth of each soul and bears it unfailingly to its proper place in the Underworld. There is no haggling and no sympathy on Athreos’s skiff, the god having heard and denied every conceivable mortal plea.
Athreos appears as a gaunt figure cloaked in ragged robes and a collection of golden masks. What little can be seen of his body is unsettling, its gray flesh stretched thin over a barely human skeleton. The River Guide is never without his ancient staff, Katabasis, which he transforms into the ferryboat he uses to ply the Rivers That Ring the World. Though the deity’s shrouded form gives no clue, many mortals consider Athreos to be male, but the River Guide cares for terms or labels no more than any other force of nature. Athreos can change shape but rarely, if ever, takes on other forms.
Athreos’s Influence Most mortals focus on the River Guide’s role in their own deaths. Countless mortal superstitions prescribe ways to garner Athreos’s favor, but all Athreos demands of those he transports is payment: a single coin of any minting or value. The River Guide has an expansive definition of what constitutes a coin, from actual stamped currency and jewelry to shiny beads or opalescent shells. Ultimately, he seems most concerned with whether a mortal has prepared for death, keeping payment ready out of respect and as a personal memento mori. Those whose bodies are burned, buried, or otherwise disposed of along with valuables deliberately intended for the River Guide discover that they can make use of such items when trading for Athreos’s services. Spirits that reach the shores of the Tartyx River unprepared, though, risk being stranded, as Athreos refuses to ferry those who can’t pay.
Athreos is also invoked as the god of passage, as well as the deity with dominion over borders, boundaries, and that which is “neither.” Those who undertake journeys, especially dangerous ones, often drop a coin into a fountain or a body of water in apotropaic acknowledgment of the River Guide. Bridges and borders are also places where Athreos is commonly remembered, with many such sites being marked by motifs of rivers or spirits. Additionally, phenomena that are neither one thing nor another, defying simple classification, are often considered to be within Athreos’s province—most notably the state between life and death, but also echoes, phantom sensations, and the feeling of déjà vu.
Athreos’s Goals Athreos endlessly works to maintain the balance between Nyx, the Underworld, and the lands of the living. The River Guide sees himself as a servant of the mortal world and knows nothing of the glamor, honor, or mystery mortals often ascribe such to him. Rather, he does what must be done, and should some cosmological condition fall out of sorts, the River Guide and his servants work with silent efficiency to restore balance.

Divine Relationships Athreos cares little for the dealings of the other gods. As long as other deities don’t impinge on the border between life and death, either by overstepping their bounds or by trying to draw the dead back into life, the River Guide has little to do with them. More than once, this isolation has put Athreos in silent conflict with Heliod and Erebos, both of whom subtly resent Athreos for limiting how much each can meddle in the other’s realm. At the same time, the River Guide’s role as a buffer between the two vindictive gods actively prevents their grudges from exploding into divine warfare.
Thassa bears a chilly respect for Athreos. In a time before reckoning, boundaries divided the god of the sea’s dominion from the Tartyx River. Though the god of the sea quietly resents sharing even a drop of water, she considers the River Guide to be a quiet, unobtrusive trespasser on her favored element and keeps her distance. Were her respect to wane, though, Thassa would eagerly vie to control the Rivers That Ring the World.
Worshiping Athreos Most funeral traditions include small offerings and words of reverence to Athreos. Predominant among these traditions is burying or burning the dead with a clay funerary mask, to “frame” the identity of the dead for Athreos, and with at least one coin, so a soul might pay Athreos to ferry them to the Underworld. Some people are laid to rest with large amounts of grave goods. Memorial practices vary widely by culture, from tearful, somber affairs to lively celebrations. These rituals serve more as catharsis for the living than as meaningful boons to Athreos, though. The River Guide cares only for the single coin he’s owed by any who board his skiff.
During the feast of the Necrologion, which gives its name to the eighth month in the calendar of Meletis, pious souls silently spend the day reading ancient memoirs or writing messages for their own descendants.

Athreos’s Champions Athreos expects his champions to maintain the balance between the living and the dead, just as he does. Beyond this, his servants take it upon themselves to maintain funerary customs unique to their cultures and preserve the memories of the departed. Beyond the mortal world, the River Guide opposes any who disrupt the cycle of life and death, behavior that occasionally brings him into conflict with other deities—particularly Erebos and Heliod, but also occasionally Phenax and Pharika.

• Alignment: Usually lawful, often evil
• Suggested Classes: Cleric, monk, rogue, wizard

• Suggested Cleric Domains: Death, Grave (described in Xanathar’s Guide to Everything)

• Suggested Backgrounds: Hermit, sage, sailor, urchin

Most worshipers of Athreos believe death is a natural part of life, to be neither rushed toward nor run from. They seek to do their part in fulfilling the natural order, easing the passage of the living into death. Most also respect their ancestors and honor them through tradition, ritual, and memory.
Athreos’s Favor As all mortals eventually bow before him, the River Guide doesn’t seek worship. When mortal agents are necessary, though, Athreos often seeks the descendants of those who impressed him during their journey to the Underworld. The Athreos’s Favor table offers several suggestions for the nature of your connection to the god.

Athreos’s Favor

• d6 Circumstance
• 1 A family member died bringing you into the world.
• 2 You don’t think or feel as others do, finding emotions messy and confusing.
• 3 In a brazen or desperate moment, you dared death to take you—and in a way, it has.
• 4 You sent a Returned back to the Underworld, restoring a measure of order to the cosmos.
• 5 Serving Athreos is your family tradition, a responsibility honored for countless generations.
• 6 You have died before, and in that moment, you glimpsed the mists that surround Athreos’s skiff.

Devotion to Athreos Servants of Athreos facilitate the passage from life into death. As a follower of Athreos, consider the possibilities on the Athreos’s Ideals table as alternatives to those suggested for your background.
Athreos’s Ideals

• d6 Ideal
• 1 Devotion. My devotion to my god is more important to me than what he stands for. (Any)
• 2 Tradition. Honor the dead through rites of respect and by continuing their ways. (Lawful)
• 3 Dread. Mortals put their fear out of mind, but through me, they will remember the inevitable. (Evil or neutral)
• 4 Apathy. Life is but a rehearsal for death, and it’s best not to grow too attached to it. (Neutral)
• 5 Succor. I offer balm to the dying—which, to varying degrees, includes all of us. (Good or neutral)
• 6 Judgment. Violations against the order of life and death must be set right. (Lawful)

Earning and Losing Piety You increase your piety score to Athreos when you honor him or the cycle of life and death through acts such as these:
Providing coins and overseeing burial rites for those slain during a tragedy Ensuring that the deeds and knowledge of someone who has died are preserved Slaying a Returned and its associated eidolon Your piety score to Athreos decreases if you diminish the River Guide’s influence in the world, impede his work, or disrespect the dead through acts such as these:
Denying a dying person their final rites Removing wealth from a corpse or defiling a tomb Aiding those who seek to escape from the Underworld, or who already have

• Athreos’s Devotee
Piety 3+ Athreos trait

Your life is intertwined with the fate of the dead. You can cast gentle repose with this trait, requiring no material components, a number of times equal to your Wisdom modifier (minimum of once). You regain all expended uses when you finish a long rest. Wisdom is your spellcasting ability for this spell.

• Athreos’s Votary
Piety 10+ Athreos traitYou can cast speak with dead with this trait, requiring no material components. Once you cast the spell in this way, you can’t do so again until you finish a long rest. Wisdom is your spellcasting ability for this spell.
• Athreos’s Disciple
Piety 25+ Athreos traitYou can cast false life with this trait, requiring no material components. When you do so, you gain an additional 25 temporary hit points. Once you cast the spell in this way, you can’t do so again until you finish a long rest. Wisdom is your spellcasting ability for this spell.
• Champion of the Passage
Piety 50+ Athreos traitYou can increase your Intelligence or Wisdom score by 2 and also increase your maximum for that score by 2.

Underworld Crossing The Tartyx River is dotted with ruined temples of Athreos on either side of its banks that serve as crossing points between the mortal world and the Underworld. Souls of the dead wait on the riverbank at these desolate places for the River Guide to appear and grant them passage to the Underworld side.
The ruined temple buildings are as enigmatic as their patron. No priests inhabit or care for these places, though they are guarded by cerberi and phylaskia. When living mortals enter these shrines, the buildings come alive with magic traps meant to keep the living out of the realm of the dead and the dead from returning to the land of the living.

Religions

• The Gods of Theros