The Compendium of stolen truths

Publisher: Dungeon Masters Guild

A Secrets Expansion for Vecna: Eve of Ruin

In Vecna: Eve of Ruin, secrets are powerful — but what if they truly mattered?

The Compendium of Stolen Truths is a narrative and mechanical expansion that transforms secrets from momentary advantages into campaign-defining forces. This supplement introduces a structured Points of Power system that ties every revealed or concealed secret directly to Vecna’s strength and the progression of his ritual.

Throughout the campaign, the players’ choices regarding secrecy shape the final confrontation in meaningful ways.

• Use NPC secrets in combat to siphon divine power.

• Introduce Minor and Major Player Secrets to deepen character arcs.

• Track Ritual Points that determine how powerful Vecna becomes.

• Scale the ritual itself based on how many secrets are revealed.

• Resolve the campaign with a dynamic ritual-ending mechanic where the multiverse may be stopped, redirected, or reshaped.

This system creates a deliberate inversion:

If secrets remain hidden, Vecna grows stronger — but the ritual remains more controlled.
If secrets are revealed, Vecna weakens — but the ritual advances toward unstoppable culmination.

There is no optimal path. Only consequence.

Inside This Supplement:

• A complete Ritual Tracker system (scaled for 3–6 players)

• Guidance for implementing NPC, Minor, and Major Secrets

• A Scars of Truth framework for divine awareness

• Vecna scaling from CR 26 to CR 36 (including mythic phases)

• A Ritual DC system for stopping or completing the spell

• A climactic multiverse reshaping mechanic with meaningful sacrifice

This expansion is designed for DMs who want player choice to matter in a high-level campaign. It preserves the structure of Vecna: Eve of Ruin while adding emotional weight, mechanical consequence, and a dynamic endgame.

If your table wants secrets to feel dangerous, powerful, and transformative, this compendium gives them purpose.

: $9.99