Shadow Canyons

Shadow Canyons is the third area in Sonic Boom: Shattered Crystal. Located on an unspecified island, it is a rocky desert filled with canyons, hence its name, and mining settlements everywhere. When Team Sonic followed Amy's trail to the Shadow Canyons, they met Shadow who was mind-controlled by Lyric.

Story
Having arrived in Shadow Canyon, Sonic and Knuckles learned of Tails' multitasking skills as the young fox from Amy's files that their lost friend had been at the other end of a canyon. There, Team Sonic found Shadow, who was acting rather peculiar, and when Sonic tried to talk to him, the black hedgehog acted like he was an agent of Lyric as he attacked the heroes.

After Sonic knocked out Shadow, Team Sonic learned that Shadow had no recollection of anything before his encounter with Lyric. Analyzing a broken device Shadow wore, Tails found out it was a Mind Control Device Lyric used to control Shadow. Without warning, the device turned into a holographic phone through which Lyric threatened everyone. Lyric then revealed upon Sonic's inquire that he was currently probing Amy's mind for the location of the Crystal Shards which would grant him omnipotence. As Lyric ended his transmission, Shadow ran off on his own to get revenge on the rogue Ancient for using him. Hoping to find more clues about Amy, Sonic lead his team into an ancient city.

Shadow Canyons
The front part of Shadow Canyons takes place in a mining town while the back part is set inside the mines. It becomes available after obtaining eight Sonic Badges.

Worm Tunnel
The Worm Tunnel is a racing course where the player must reach the end of an obstacle course while dealing with Driller Worms. It becomes available after clearing Shadow Canyons and obtaining ten Sonic Badges.

Shadow Canyons Race
In Shadow Canyons Race, the player has their second rival race through the canyons. Here, Sonic races Shadow the Hedgehog to the goal, whom the player must beat to proceed. It becomes available after clearing Shadow Canyons and obtaining eleven Sonic Badges.

Q-N-C's Toy Shop
This building is the local shop owned by Q-N-C. Here, the player can trade Tokens for toys and display their current collection. It becomes available after clearing Shadow Canyons.