User blog comment:Kaido King of the Beasts/Why Kanjuro Needs to Die/@comment-68.117.57.176-20200317141954/@comment-187.121.87.23-20200326160036

Actually Robin never intended to help Crocodile find Pluton.

In a way, she'd been using him to get to the poneglyph, hoping it would have any info about the void century.