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Finn Mertens (Sometimes referred to as "Finn the Human", and less often referred to as "Pen", "Frank the Human Boy" or just "Child") is a twelve (Seventeen in newer shows) year old boy who loves nothing more than adventures. He's the little adoptive brother of Jake and Jermaine and adoptive son of Margaret and Joshua. His biological parents where the nurse Minerva "Minny" Mertens and the conman Martin Mertens, the latter of whom who tragically lost Finn at sea while he was being pursued by a client. As an adventurous young man, Finn is the brave, compassionate and heroic champion of not only the Candy Kingdom but the entire Land of Ooo.