You can find a separate table of contents showing all non-canon chapters (spoilers abound) right here and the story will also soon be (gradually) added to Royal Road
Arc 1: Discovery
Arc 2: Becoming
Arc 3: Legwork
Interlude 3A – The Girl With The Lizards
Arc 4: Pursuit
Interlude 4B – Sterling, Elena, and Blackjack
Arc 5: Collectors
Arc 6: Alliances
Arc 7: Showdown
7-08 (And Patreon Snippet – Izzy)
Interlude 7A – Pack and That-A-Way
Interlude 7B – Molly and Ryder
Arc 8: Friends and Enemies
Arc 9: Private Affairs
Commissioned Interlude 1 – That-A-Way and Pack
Interlude 9A – Breakwater and Patreon Snippets 13B
Interlude 9B – More Lost Memories
Arc 10: Fault
Arc 11: Ready
Commissioned Interlude 2 – Sphere Online Forum
Interlude 11B – Robert and Pencil
Arc 12: Pink
12-03 and Patreon Snippets 15B
Commissioned Interlude 3 – Armistice
Arc 13: New Deals
Commissioned Interlude 4 – Merit, Kansas
Commissioned Interlude 5 – Eastland, Oregon
NON-CANON 1 – CUELEBRE AND DEICIDE (hosted on Patreon)
Interlude 13A – Paige and Her Father
Interlude 13B – Paige’s Preparations
Arc 14: Project Owl
14-01 and Patreon Snippets 17B
NON-CANON 2 – LA CASSIDY (hosted on Patreon)
Arc 15: Trust
Commissioned Interlude 6 – Amber
Commissioned Interlude 7 – Lion
Interlude 15B – Dani and Amber
Arc 16: Building Connections
16-04 (And Patreon Snippets 19B)
NON-CANON 6 – MINISTRY CASSIDY
Commissioned Interlude 8 – The Bees And The Termites
NON-CANON 7 – AN EVENTFUL DINNER
Arc 17: In Like Flynn
Arc 18: Hostile Witness
NON-CANON 10 – MAGICAL GIRLS SIDEKICK
NON-CANON 11 – IRELYN AND PAIGE
Interlude 18B – Eits and Simon
Arc 19: Winging It
NON-CANON 12 – PAINTBALL AND FLEA
Interlude 19A – Murphy and Roald
Arc 20: Kith and Kin
NON-CANON 13A – AN AFTERMATH OF DINNER
NON-CANON 13B – MAGICAL GIRLS VERSUS THE EVIL QUEEN
Commissioned Interlude 9 – Sphere Online Forum 2
NON-CANON 14A – PAINTBALL, FLEA, AND PAIGE
NON-CANON 14B – JOYRIDE AND LIGHTNING BUG
Interlude 20A – Jolene Iverson
Interlude 20C – Jae And The Chambers Twins
Arc 20: Equal And Opposite
Commissioned Interlude 10 – Minority Guys
NON-CANON 15 – SIMON FINDS OUT
NON-CANON 16 – JOYRIDE VS MINORITY
Interlude 21A – An Unexpected Detour
Arc 22: Dig In
NON-CANON 17 – A COUPLE OF HEROES
Interlude 22A – The Artist Formerly Known As Raige
Interlude 22B – Meanwhile On Breakwater
Interlude 22C – Double-Oh Eits
Arc 23: Enkindle
NON-CANON 19 – STREETS AND SCALES
NON-CANON 20 – VOTARY AND PAIGE
Commissioned Interlude 11 – Civ-Touched
Arc 24: Schooling
NON-CANON 22 – PACK IS A BLABBERMOUTH
Commissioned Interlude 12 – Amber and Dani/That-A-Way and Pack
Interlude 24A – Fragile and Deicide
Interlude 24B – Dani and Amber
Arc 25: Exhibition
NON-CANON 24 – BIRTHDAY SAVING PAIGE
Interlude 25A – Sterling And Elena
Interlude 25B – A Fortuitous Meeting
Arc 26: Center Of Attention
NON-CANON 25 – SEOSTEN CASSIDY (Big Heretical Edge Crossover)
NON-CANON 26B – MORE SEOSTEN CASSIDY
Interlude 26A – Paige And Sierra
Interlude 26B – Unlikely Alliance
Commissioned Interlude 13 – Baldur
Arc 27: Together And Alone
NON-CANON 27B – EVEN MORE SEOSTEN CASSIDY