How many chapters are there in Sonic Chronicles the dark brotherhood

There are 10 chapters in Sonic Chronicles the Dark Brotherhood. The chapters are called: Chapter 01: Hostile Reception Chapter 02: The Search for Knuckles Chapter 03: Egghunt Chapter 04: A Wolf in the Shadows Chapter 05: Battle for Angel Island Chapter 06: Black Hole Sun Chapter 07: Quest for the Chaos Emeralds Chapter 08: Sector Scylla Chapter 09: Sector Charybdis Chapter 10: Citadel Showdown