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- ISBN: 9788416147861 | 8416147868
- Cover: Hardcover
- Copyright: 5/16/2017
Peter and his friends want to share their great discovery with you. We don’t only cry when we’re sad! This enthusiastic team of young scientists sets up a laboratory in a garage to study tears, and all the different things they can be used for. They are about to become explorers, in a sea of emotions . . .