First you must complete a certain quest- and also have completed the world before Marleybone. The character who gave you the quest was likely to be Headmaster Ambrose. Once you return to him, he will give you the spiral key for Marleybone.
Spiral fractures are described as crossing a bone at an oblique angle, creating a spiral pattern. This break usually occurs in the long bones of the body such as the upper arm bone (humerus) or the thigh bone
Spiral
Spiral bone fractures, or any fracures for that matter, could be caused by malnourishment of the bones. Weak bones=more breaks and fractures. Bone injury is almost always a result of trauma, however.
Spiral Fracture
vortex- a spiral or whirl
Comminuted
The talus is a key bone of the ankle because it is most weight-bearing bone in the body.
I was level 30, but I don't know if it varies between quests or not.
A spiral fracture is bone breakage caused by a twisting force. They are also known as torsion fractures. Treatment can be months in a cast and possible surgery. The classic example is when skiers lock their boots into the ski and then lose control, the leg may be violently twisted in one direction.
In a femur it would be something like a hard landing on your foot causing pressure and thereby creating a spiral as it cracked in an upward motion. In an arm is similar. It takes a lot of force to cause a spiral fracture.
Bad to the bone by Inner Circle. Not Bob Marley. The song was released after his death.
there not its just bone