Kathleen Mulqueen

Lucas and Mark McCain settle near North Fork.

In a labyrinthine search for the facts, Perry Mason goes from books to bookies.

Lucas and Mark are robbed while riding the stage back from a cattle sale.

Lucas becomes involved in the family troubles of the hotel clerk.

Jim tries desperately to finish his work before he has to leave on a trip.

A thief steals a piece of oil research equipment which contains radio-active elements. If the machine is disassembled, exposure to the elements will result. Such exposure may prove fatal. When the pursuing police close in on the thief, he jettisons the machine, hoping to return to it at a more opportune time. But a junk scavenger has found it and sold it to a junk dealer.