X-Men Vol 4 #21

Description

• 'EXOGENOUS' Part 4 of 5!
• As the X-Men race to find the origins of the threat that has emerged from deep space, they discover that there's a larger conspiracy at work... one that may have its roots close to home!
• What are Agent Brand's ties to the mysterious Providian order?
• How could Deathbird's secret upset the balance of the cosmos?
• And what does the third Summers brother - and Rachel Grey's uncle-Vulcan have to do with it all?
• Rated T+