Sentence:  Immediately upon getting this information I dispatch'd Mr. Hicks away in the Long boat with a strong party of men to rescue them but before he went Tootaha and the other Chiefs was made to understand that they must send some of their People with Mr. Hicks to shew him the place where our men were, and at the same time to send orders for their immediate <WSD>releasement</WSD>, for if any harm came to the men they (the Chiefs) would suffer for it; and I believe at this time they wished as much to see the Men return in safety as I did, for the guides conducted Mr. Hicks to the place before daylight, and he recovered the men without the least opposition, and return'd with them about 7 o'Clock in the morning of Tuesday, 11th. 
Meaning of the word marked with <WSD> tags:  release, the act of releasing or letting something go.