Jessie asked Henry and Benny. “Do you remember when we visited the butterfly pavilion after lunch yesterday?” Henry asked his sister. After she nodded, he continued. “There was a zookeeper carrying a little monkey in a cage. That might have been Simio.” “I’m sure it was! Zookeeper Frank said that the first time Simio escaped yesterday, they found him near the butterflies,” Benny added. “You really are the best rememberer ever!” Violet said, giving Benny a quick hug. Jessie turned to Mr. Newton. “Has Simio ever escaped his cage before?” “He’s a smart monkey,” Mr. Newton said with a long sigh. “Yes. He gets out all the time. Every time we change the locks, he still figures out a way to escape.” “How many times has he wandered around the zoo?” Henry asked. “Three times that I know of,” Mr. Newton said. “But I haven’t been working here very long. It might be more.” He gave a small smile. “Know what’s funny? Even if Simio leaves the door open, none of the monkeys that share his cage ever leave.