Sonic the Hedgehog, Vol. 10: Test Run!

When Dr. Eggman unleashes his latest attack, Sonic and Tails will have to rely on their friends to help them foil his latest dastardly plan!
There's a new kid on the block! And a new... tower? While Tangle tries to initiate the new recruit, Belle, into the Restoration, Sonic, Tails, and Amy investigate a mysterious structure that has popped up. Turns out, it's a maze of twisting corridors and crazy challenges! Can they pass this test with flying colors?

Fan-favorite writer/artist Evan Stanley continues her epic Sonic run in this adventure also featuring artists Adam Bryce Thomas and Bracardi Curry.

Collects IDW's Sonic the Hedgehog issues #37-40.