Canto

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Every pack has its tales. Canto lets you write yours in one file and see it on Wolvden: your own words softly underlined with their meanings, your bloodlines glowing on your den, families named when two lines meet, a calendar in your own season names, and the names you've saved for pups waiting beside the rename box.

Canto is an add-on for Twill, so Twill needs to be installed first. Like Twill, it only reads the page you already have open.

Canto will never play the game for you. We leave that to you.

Read the full write up, and how to install it →

Field Guide: Canto, the tester introduction →

Install

1. Have Twill installed and working. Its stag sits in the corner of every Wolvden page.
2. Click canto.user.js and press Install when Tampermonkey asks.

Then open Wolvden. Canto's campfire sits just above Twill's stag. Click it, or press Alt+C. In Files, load your lore file, start a new pack, or try the sample Hollowmere pack.

Updates happen by themselves after that, the same way Twill's do. Nothing you have written is lost when it updates. If you installed version 0.1.0, click the install link once more: versions from 0.1.1 on keep themselves up to date.

What is in it

Canto's hub opens on a list of its sections, with Help & About behind the blue ?. Here's what each does, and the pieces Canto adds to your own Wolvden pages.

Language	Your pack's own words, softly underlined on your den and your own wolves. Hover or tap one for its card: the word, how to say it, what kind of word, its meaning. Grouped by kind: nouns, verbs, describing words, places, names and titles, sayings, songs and more
Bloodlines	A card under Twill's Lore panel with the wolf's line, its role and its lore birth, all changeable right there. On your den each wolf shows its line's colour in the style you pick (a glow, an edge, its name bar and more), and the Show bar lights one bloodline at a time. Studs you borrow from other players go under Outside studs. In four parts: Lines & families, Roles, Names and Den look. Wolves who have died keep their line, read from your Pack Dynasty
Projects	A line can be a bloodline, a breeding project, or both. A wolf keeps one bloodline and joins as many projects as you like; the Show bar switches between them. Give a whole Twill Tray a line or project at once
Families	Two lines meet to make a named family, which is a line of its own and can meet another later. On a pup's Family page, Canto asks you to name the family when its parents' lines have never met
Tales	Write your pack's lore with bold, italic, headings, lists and pictures: a page for the pack, one for every bloodline, and any you add. In the hub and in a box on your den, with "Need a nudge?" questions to get you started. File pages into your own folders, like History or Legends
Calendar	Count your pack's years by Wolvden's seasons or by one wolf's age, give the seasons your own names, and add events that happen every year or just once. What's coming shows on the wheel and at the top of the hub. Each event can have a type (festival, holiday, alliance, war or battle, birth, death, anniversary), and the Overview shows the next 10 days. Your pack's deaths from the Pack Dynasty appear under Important dates, remembered each year
Names waiting	Names saved for future pups, optionally for a line. Offered on a pup's card and beside Wolvden's rename box: tap to copy. Crossed off once a wolf wears one, with an undo
Files	Keep a lore file for each pack and switch between them. Save my lore file writes a fresh copy, Copy what changed gives just the new lines to paste
Help & About (the ?)

And a look of its own in bark and ember, or one that follows your Twill theme.

Your lore file

One plain text file per pack, written in Markdown. Every section is optional, and anything Canto doesn't recognise is kept and written back untouched.

# Hollowmere Pack
Kept by Fallowe

## Language
Ashvenn: the hour the fire is let burn low, when the last tale of the night is told.
  Say: ASH-ven. Kind: noun. See also: Emberwake

## Lines
Hollow: #3fc5a0, the first wolves of the valley
Ashen: #d9dee6, from the burnt ridge

## Projects
Silver Coats: #c37ad6

## Families
Hollow + Ashen = Emberfall

## Wolves
Ashpaw (12345678): Emberfall, Healer, born late Greening, Year 4, projects Silver Coats

## Outside studs
Ravenmoor (18822101): Ashen

## Roles
Alpha, Healer, Scout, Storykeeper

## Calendar
Count: seasons from 2026-09-04
Seasons: Greening, Longlight, Ashfall, Deepcold
Every year, late Ashfall: the Ember Walk [festival]

## Names
Hollow: Fern, Ash, Bramble
Rook, Wren, Tallow

## Tales
Folders: History

### The pack
Hollowmere keeps to the **still water below the falls**.

### Hollow
The first wolves of the valley.

### History › The river froze
The winter the pack crossed the ice.

What it will not do

• It never loads a page for you. No randomly opened tabs.
• It never clicks, submits or fills a form for you. Names waiting are copied for you to paste yourself.
• It never refreshes anything on a timer.
• It sends nothing anywhere. No server, no account, no tracking, no analytics. The only thing it loads is its two fonts, Eczar and Commissioner, from Google Fonts.
• It does not gather up the site. It keeps what you write, plus the parent ID numbers of wolves whose Family page you open, and the age of one wolf if you choose to count your years by it.

These are facts about the source rather than promises. There is no fetch, XMLHttpRequest, sendBeacon, WebSocket, setInterval, .submit() or location.href anywhere in the file, and the script runs with @grant none.

Your data

Everything lives in your own browser's localStorage, under keys prefixed canto:, and never leaves your machine. Clearing site data removes it, so use Save my lore file in Files to keep a copy, especially before moving computers.

Telling us what you find

Bugs, ideas and questions are all welcome, with or without a Discord account. Use the form at the bottom of the Field Guide, or post in #beta-test under the Twill category on the Society of Fur Discord.

Thanks

Wolvden, by Lioden Ltd, for the game, the art and the team behind it. This is an unofficial fan tool and is not affiliated with or endorsed by them.

The Society of Fur, and everyone testing Canto, for thoughts, wishes and feedback throughout.

Licence

Canto is a free, world building specific add-on for Twill that works in conjunction with the modules and your own lore files and libraries. Keep the credit where it is, and do not sell it or hand on a copy you have edited. An edited copy could break every promise above while still wearing this name, which is the one thing that cannot be allowed to happen.

Read the licence

Come say hello

• Join us on Discord
• The guild on Wolvden

Bugs, ideas and requests are all welcome. By Fallowe.