"The Mortal Iron Fist, Conclusion"
*The job title may be 'Immortal Iron Fist,' but the individuals who take on that mantle are anything but. And after his 33rd birthday, Danny found out exactly why--when he came face to face with the Ch'i-Lin, a malevolent force that kills every Iron Fist at age 33. But why? And how was his predecessor, the long-lived Orson Randall, able to escape it? Danny better figure something out fast, or he'll be trading in his costume for a green-and-yellow body bag!
*Source: marvel.com