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Hazel and Gus meet at the cancer support group. Issac is the one who introduces them.
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Hazel and Gus finally decide to go on a date together.
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Hazel and Gus decide to go to Amsterdam using Gus's wish from the Make-A-Wish Foundation to go meet Peter Van Houton.
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Hazel and Gus get on a plane with Hazel's mom to go to Amsterdam together.
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Hazel and Gus go to Van Houton's house to find out what happened after the end of his book. He refuses them and turns them away.
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Hazel, Gus, and Hazel's mom tour Amsterdam for the rest of the week.
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Gus tells Hazel that his cancer has spread throughout his entire body.
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Hazel, Gus, and Hazel's mom come home from Amsterdam.
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Gus passes away due to his cnacer.