Uncanny X-Men #12
Now we're getting somewhere! This issue introduces the Juggernaut as well as revealing more of Xavier's backstory, which is the bulk of the issue. The issue is set-up that Xavier is telling the story of him and his step-brother Cain Marko, who it seems has returned and has begun storming the mansion. While Xavier tells his story, the mansion's defenses are breached one by one as Cain slowly but surely makes his way closer and closer to Xavier.

The tension built in this issue is just fantastic. We're never given a clear look at the Juggernaut until the last panel, allowing the reader's imagination to run wild as we attempt to picture this massive, unstoppable figure.

It is amusing that the Juggernaut is such a Stan Lee creation. How do you come up with a foe for the physically handicapped yet extremely intelligent Xavier? Well, you make a brother who is extremely strong but slightly stupid. The dichomoty is overly obvious, yet again Lee makes it work.

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