Sam thought before anything unrecoverable happened, he should discuss the matter with Mr. John. Then, Mr. John made him realize that was not a big problem and could be easily resolved.
"Sam, listen to my plan. Told a lie to Thomas that the special machine had been invented to take the children to the past and future. You can show any ordinary belt to him as a gadget. Then tie that belt with the baby and went away with Thomas. Tell him that the baby will reach the specific time and place on his own".
Mr. John's plan highly inspired Sam. He was feeling so embarrassed that he had never handled the situation so efficiently. But he determined that he would strive to develop that ability and keep on practicing for that.
Then, he went to the shop and bought an ordinary belt. He thought Thomas was so experienced with the top gadgets. That was why it was not so easy to deceive him in that case.