Sonic the Hedgehog Volume 20: Cause & Effect

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Sonic the Hedgehog (Graphic Novel)

Publication Details
Issue	20
Date Published	December 02, 2025
Publishing Company	IDW Publishing
Production Staff

Sonic the Hedgehog Volume 20: Cause & Effect is the twentieth volume in the Sonic the Hedgehog trade-paperback series published by IDW Publishing. This volume contains reprints of stories from Sonic the Hedgehog #76- #78 and the Sonic the Hedgehog Annual 2024.

Official solicitation[]

Sonic and friends deal with the impact of the Restoration’s demise in the next installment of the best-selling comic series!

While Sonic is trying to find Clutch, Amy and Tails decide to visit towns connected to the Restoration to see how much they are impacted by its loss. The Diamond Cutters, though officially disbanded, stay together to try to rebuild Emeraldville with help from surrounding towns. Surge and Kit are also around trying to help in their own way, but their help isn’t always wanted!

Volume 20 collects issues #76–78 and the 2024 Annual.^[1]

Reprinted stories[]

Story one[]

Main article: IDW Sonic the Hedgehog Issue 76

Story one[]

Main article: IDW Sonic the Hedgehog Issue 77

Story one[]

Main article: IDW Sonic the Hedgehog Issue 78

Story one[]

Main article: Sonic the Hedgehog Annual 2024

Story one[]

Main article: Sonic the Hedgehog Annual 2024

Story one[]

Main article: Sonic the Hedgehog Annual 2024

Other features[]

Trivia[]

The cover artwork for this volume is from cover A for Sonic the Hedgehog #76.

References[]

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IDW Sonic Graphic Novels

Sonic the Hedgehog	1 \| 2 \| 3 \| 4 \| 5 \| 6 \| 7 \| 8 \| 9 \| 10 \| 11 \| 12 \| 13 \| 14 \| 15 \| 16 \| 17 \| 18 \| 19 \| 20 \| 21 \| 22
Miniseries	Tangle & Whisper \| Bad Guys \| Imposter Syndrome \| Scrapnik Island \| Fang the Hunter \|
The IDW Collection	Vol. 1 \| Vol. 2 \| Vol. 3 \| Vol. 4 \| Vol. 5 \| Vol. 6
On The Go	Vol. 1
Other	Sonic the Hedgehog: Bonds of Friendship \|Sonic & Tails: Best Buds Forever \| Sonic the Hedgehog 30th Anniversary Celebration (Deluxe Edition) \| Knuckles' Greatest Hits \| Sonic the Hedgehog: Seasons of Chaos \| Box Set \| The Best of Shadow

IDW Sonic Comics

Sonic the Hedgehog	1 \| 2 \| 3 \| 4 \| 5 \| 6 \| 7 \| 8 \| 9 \| 10 \| 11 \| 12 \| 13 \| 14 \| 15 \| 16 \| 17 \| 18 \| 19 \| 20 \| 21 \| 22 \| 23 \| 24 \| 25 \| 26 \| 27 \| 28 \| 29 \| 30 \| 31 \| 32 \| 33 \| 34 \| 35 \| 36 \| 37 \| 38 \| 39 \| 40 \| 41 \| 42 \| 43 \| 44 \| 45 \| 46 \| 47 \| 48 \| 49 \| 50 \| 51 \| 52 \| 53 \| 54 \| 55 \| 56 \| 57 \| 58 \| 59 \| 60 \| 61 \| 62 \| 63 \| 64 \| 65 \| 66 \| 67 \| 68 \| 69 \| 70 \| 71 \| 72 \| 73 \| 74 \| 75 \| 76 \| 77 \| 78 \| 79 \| 80 \| 81 \| 82 \| 83 \| 84 \| 85
Miniseries	Tangle & Whisper: 1 \| 2 \| 3 \| 4 \| Bad Guys: 1 \| 2 \| 3 \| 4 \| Imposter Syndrome: 1 \| 2 \| 3 \| 4 \| Scrapnik Island: 1 \| 2 \| 3 \| 4 Fang the Hunter: 1 \| 2 \| 3 \| 4
One-Shots	Team Sonic Racing (DTC Edition) \| Tangle & Whisper #0 \| HCF 2019 \| 30th Anniversary FCB Day 2021 \|FCBD 2022 \| Sonic the Hedgehog 2: The Official Movie Pre-Quill \| Endless Summer \| Sonic the Hedgehog's 900th Adventure \| Halloween Special \| Winter Jam \| Spring Broken \| Chasing Shadows Character Anniversaries: Sonic's 30th (Deluxe Edition) \| Tails' 30th \| Amy's 30th \| Knuckles' 30th \| Team Chaotix's 30th
Annuals	2019 \| 2020 \| 2022 \| 2024
Reprints & Compilations	Sonic the Hedgehog Graphic Novel Series \| Issue 1-4 Box Set \| Tangle & Whisper Box Set (Cancelled) \| Sonic the Hedgehog: Bonds of Friendship \| Sonic & Tails: Best Buds Forever \| Sonic the Hedgehog (one-shot) \| Sonic the Hedgehog 5th Anniversary Edition \| Seasons of Chaos \| Knuckles' Greatest Hits \| Sonic the Hedgehog: The IDW Comic Art Collection \| Sonic Prime: (Vol. 1 \| Vol. 2) \| Sonic the Hedgehog: Box Set, Vol. 1-3 \| The Best of Shadow \| Sonic the Hedgehog: The IDW Comic Covers
The IDW Collection	Vol. 1 \| 2 \| 3 \| 4 \| 5 \| 6
On The Go	Vol. 1

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[Penguin-1] Cite error: Invalid <ref> tag; no text was provided for refs named Penguin

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