1. The problem states that Gabriel initially has 9 apples. 2. He gives 2 apples to Annie, so he has $9 - 2 = 7$ apples left. 3. Then Gabriel loses 1 apple, so he has $7 - 1 = 6$ apples. 4. After that, Gabriel finds 100 apples. 5. The question asks: Where did Gabriel get the 100 apples? This is a word problem involving a story, not a mathematical calculation. Since the problem does not provide information about where Gabriel found the 100 apples, we cannot determine the exact location mathematically. Therefore, the answer is: The problem does not specify where Gabriel found the 100 apples. This is a comprehension question rather than an algebraic or arithmetic problem.