Miracle Box Set. Miracle Trilogy

I died and was resurrected, and I don't know why. My name is Casi Clarity. I was 26 years old when I died in 1969. Then I woke up in the 21st century-whole, sane, and unblemished. And at the same age I was when I died. What's more, when I came back, I brought a friend with me. His name is Coheed. He's a corporeal spirit, and he is also my protector. Against what, you ask? Well, it seems that ever since my return, I've been chased by ghosts.
Demons. Ancient evil. Monsters. You name it. Why are they after me? Because they want to know my secret. They want to wreak havoc on mankind and bring about our ultimate destruction, and the only way they can accomplish that is by being fleshy beings again. To inhabit as many bodies as they can to cause untold horror. They are determined to discover how I returned from the dead, even if it means trapping me, torturing me, and ultimately killing me again to see if I'm resurrected a second time.
My name is Casi. The undead call me Mouse. Coheed calls me Miracle.