Rex Koko, Private Clown

Rex tries to sort through his loose ends with Hobie Hoobler, the old blind newsie, but comes up with nanty as to who is killing the aerialists of Top Town. Our heroic bigshoe is forced to throw himself head first into some dangerous company to shake loose new clues. Episode 15 of 23 (From the e-book of the same name, available at Amazon:  http://www.amazon.com/dp/B004YFEUCQ)