i realy found a jackpot here, in the 5 books all 5 got a treatment with picks.
book 1, when snooping they get caught and in the book they get handcuffed but the picks show them tied up
They also get blindfolded when they get transported
Book 2, when they snoop again they get caught again and end up tied up and gagged, they also get KO and wake up untied
book 3, both of them get caught again and end up with there hands tied
book 4, when snooing a circus they get caught and get tied up, they than get transported to a hideout were they are forced to work
book 5, during a movie shoot the girl get tied up(the girl does not like to be the damsel), later on a real badguy shows up and tie up the kids aloung with a movie worker
