I Have The "thing" Worked Out -

All Of Us Write Wish Fulfillment.

The Third Guy Was Different. He Was What You Got When You Ate Squirrels For Four Generations. Smarter Than A Rat And Tougher Than A Goat, And Jumpier Than Either One.

To Fill A Small Bag Means Selecting,and Choosing, And Evaluating. There's No Logicial End To That Process. Pretty Soon I Would Have A Big Bag, And Then Two Or Three. A Month Later I'd Be Like The Rest Of You.

The Most Sustained Feat Of Imagination In Mystery Fiction Today.

You Do Not Mess With The Special Investigators.