Which preposition to use with unhook

from Occurrences 2%

To distract the impatient westerners, a servant unhooked from the wall the cage of a gently-cooing dove.

in Occurrences 2%

Dr. Hayden, the explorer, already referred to, was the first man to take advantage of the opportunity and to cook his fish unhooked in the boiling water to his left, merely making a half turn in order to do so.

Which preposition to use with  unhook