You carry Excalibur. You're worthy. I'll knight you now, if you want. But even better, be a knight at that one great moment, because you know you're worthy. 
This issue collects following issues:
Captain Britain and MI13 #10
"Vampire State (Prologue)"
"Vampire State (Prologue)"
Captain Britain and MI13 #11
"Vampire State (Part 1)"
"Vampire State (Part 1)"
Captain Britain and MI13 #12
"Vampire State (Part 2)"
"Vampire State (Part 2)"
Captain Britain and MI13 #13
"Vampire State (Part 3)"
"Vampire State (Part 3)"
Captain Britain and MI13 #14
"Vampire State (Part 4)"
"Vampire State (Part 4)"
Captain Britain and MI13 #15
"Vampire State (Conclusion)"
"Vampire State (Conclusion)"
Captain Britain and MI13 Annual #1
"The Harrowing of Hell"
"The Harrowing of Hell"