Door 10 (O D)

All Hallow's Eve

Dancing in the moonlight, a skeleton sings a merry song

The heel bone connects to the ankle bone...
The ankle bone connects to the shin bone...

You think back to the bones you've noticed today.

What connects the L bone to the T bone?

Answer

Look at the bones on the doors L leads to T (LIGAMENT)

The skeleton feels fully connected with ligaments