Sonic Underground
Season 1, Episode 22: Mummy Dearest
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Sonic, Manic and Sonia invade Robotnik's lair to retrieve the Hedgehog crest. After the book is reclaimed, they discover that this book contains directions to a scroll that could be an important tool to overthrow Robotnik. The scroll is heavily protected, but Sonic leads the group in the right direction where they eventually encounter the royal Aman-Rapi.
All Episodes - Season 1
Episode 1
Beginnings (Origins, Part 1)
Episode 2
To Catch a Queen
Episode 3
Mobodoon
Episode 4
The Price of Freedom
Episode 5
Underground Masquerade
Episode 6
Tangled Webs
Episode 7
The Deepest Fear
Episode 8
Who Do You Think You Are
Episode 9
The Last Resort
Episode 10
Come Out Wherever You Are
Episode 11
Winner Fakes All
Episode 12
A Hedgehog's Home Is Her Castle
Episode 13
Artifact
Episode 14
Bug!
Episode 15
Sonic Tonic
Episode 16
Friend or Foe?
Episode 17
Head Games
Episode 18
When in Rome...
Episode 19
The Jewel of the Crown
Episode 20
Three Hedgehogs and a Baby
Episode 21
Dunes Day
Episode 22
Mummy Dearest
Episode 23
Hedgehog in the Iron Mask
Episode 24
Six Is a Crowd
Episode 25
Flying Fortress (Chaos Emerald Crisis, Part 1)
Episode 26
Wedding Bell Blues
Episode 27
No Hedgehog Is an Island (Chaos Emerald Crisis, Part 2)
Episode 28
Getting to Know You (Origins, Part 2)
Episode 29
New Echidna in Town (Chaos Emerald Crisis, Part 3)
Episode 30
Harmony or Something (Origins, Part 3)
Episode 31
Country Crisis
Episode 32
Haircraft in Space
Episode 33
Healer
Episode 34
Sonia's Choice
Episode 35
The Big Melt
Episode 36
Sleepers
Episode 37
Bartleby the Prisoner
Episode 38
The Art of Destruction
Episode 39
The Pendant
Episode 40
Virtual Danger