They are looking for treasure.
Tom and Becky get lost in the caves after wandering off from the rest of the group during a school picnic. They enter the caves for an adventure and end up getting separated from the rest of the group, leading to them getting lost deep inside the cave complex.
After 3 days in the cave, Tom finds an exit near the Mississippi River.
McDougal's cave is described by Mark Twain as a dark, gloomy place that has a romantic mystery to it. Mainly formed from limestone, it's a deep labyrinth of crooked paths that seemingly go on forever and end at parts unknown.
Becky Mezzanotte goes by Becky, and Becky Mezz.
Becky Rosso goes by Becky.
Making Aunt Polly cry. His aunt wept over him and asked him how he could go and break her old heart so; and finally told him to go on, and ruin himself and bring her gray hairs with sorrow to the grave, for it was no use for her to try any more. This was worse than a thousand whippings, and Tom's heart was sorer now than his body. (The text is an excerpt from "The Adventures of Tom Sawyer," by Mark Twain. See link below)
Becky Lynch goes on to be a Mother!! The Man becomes The Mom she and Seth Rollins are having a baby!! Go Becky!!!
Milly and Becky go to Malibu High School.
Jim: just as he was about to be executed, the townspeople realize that Miss Watson freed him (in her will) when she died 2 months earlier. Huck: the dead man found on the island earlier in the book was Huck's father; he takes his money and goes on adventures out west. Tom: his leg was shot, so that eventually recovers; he then settles down eventually.
Becky Williamson goes by RAW.
Becky LeSabre goes by Becky_GurlNextDoor.
Becky Mamo goes by Bec.