Joe, who was shy in the presence of girls, professed a lofty scorn for all members of the other sex, particularly those of high school age, but had once grudgingly admitted that Iola Morton was "all right, for a girl." This, from him, was high praise.

"Have you heard what's happened?" asked Callie, as they met the boys near the school entrance.

"School called off for to-day?" asked Joe eagerly.

"No, no. Nothing like that. It's about the Robinsons."

"What's happened now?"

"Mr. Robinson has been arrested again."

The Hardy boys stared at her as though thunderstruck.

"What for?" demanded Frank, in astonishment.

"Over that robbery at Tower Mansion. He has been working in the city lately and Chief Collig sent Detective Smuff for him last night. Iola and I were over to see the Robinson girls last night and they told us about it. Smuff should be back by now."

"Well, can you beat that!" exclaimed Frank. "I wonder what's the big idea of arresting him again?"