Peter was off the boat hugging the Charmings, Regina, and Emma while in his new form. While doing so, he noticed Felix getting off the Jolly Roger. He wanted to go talk to Felix but did not know how to in his new form without creating suspicion, so he waited until Henry's family had decided to go back home and convinced them to, against their better judgment, allow him to stay behind. When the family was gone, he approached Felix. He felt no need to ease Felix into the fact that he was Peter Pan, so as soon as he had Felix's attention, he came right out with it.
"Felix." he said while Felix looked at him suspiciously, "Felix, it's me. It's me Peter."
"Peter Pan?" Felix asked, confused.
"Of course it's Peter Pan. I switched bodies with The Truest Believer before Rumplestiltskin put him in Pandora's Box. He thought he was putting me in, but of course, Pan never fails." Peter replied with a smirk.
"I knew it!" Felix said, smiling. "I knew you would outsmart those stupid people. What is our first task?"
"Your first task is to act as if you are glad to be rid of me." Peter said, "Meanwhile I have to go get Wendy away from those terrible brothers."
"Alright." said Felix, smirking.Peter walked around Storybrooke until he saw Wendy and her brothers approaching the town line. He ran as fast as he could to catch up to them.
"Wendy!" He yelled,"Wendy, wait!"
Wendy and her brothers turn around surprised to see 'Henry' so intent on talking to them. As soon as Peter got to them, without saying a word he used crushed poppies to put all three of them to sleep then dragged Wendy's brothers into the woods. He carried Wendy through the woods so no one would see him and found an abandoned RV and put her in there so no one would find her. He then left and returned to the Charmings, acting as if nothing had happened.