One Piece Chapter 29, page 5-7: Slopes

Jango pulls out his pendulum to hypnotize Usopp, starting his count: "Look at this... after I say '1, 2, Jango', you will let us pass! One... Two...". Usopp recognizes it with dread. But before Jango can finish, Nami suddenly leaps in from the side and whacks Jango on the head with her staff, interrupting him. The pirates are shocked, and one yells, "Captain! This isn't the time to let us pass!" while others wonder, "Who the heck is that girl?

Nami angrily points at the pirates, declaring, "Don't you dare take anything! Put it all back! Do you hear me? All the treasure on that boat belongs to me!" She then turns on Usopp, hitting him and scolding him, "How can you give away someone else's treasure!" Usopp protests, "Ouch... you could have just told me! I just saved you!" Nami warns Usopp, "Like I said, don't look at his pendulum! He's a hypnotist!

Nami asks where Luffy is, and Usopp explains that Luffy ran ahead so fast he lost sight of him. They realize Luffy must have gotten lost. Usopp tells Nami to charge ahead while he covers her, but Nami refuses, pointing out that she is weak too. Usopp admits he is shaking in fear and can't even move his legs, though Nami suspects he's lying. Meanwhile, the pirates are ignoring them and talking amongst themselves.