This was one case when Bertha Cool didn’t see much of her partner, Donald Lam. This time he was living with the clients instead of running up expensive hotel bills. Still, it made it even harder for Bertha to keep tabs on him. But she had to admit that Henry C. Ashbury was a pretty smart cookie, and it was his idea to take Donald on as a gym coach so the little smoothie could gain his daughter’s confidence. Someone was blackmailing Alta Ashbury — and her father didn’t trust any of the household, least of all his second wife