At Frankfurt International Airport, the day began as usual. Passengers hurried to their gates, flight attendants smiled, and security guards routinely checked security zones.

Among them was border guard Marco and his service dog, a Belgian shepherd named Lucy. Lucy was an experienced police dog who had helped to uncover contraband and find explosives on more than one occasion. Suddenly, she stopped at a dark blue sports bag left near a bench.

Lucy did not bark as usual, but suddenly began to whine, breathe heavily, and look nervously at Marco. He immediately realized that this was not a normal reaction.

He raised the alarm and ordered the area to be cordoned off. People were quickly evacuated, and sappers were already on their way to the site. But the bag did not emit any radiation or chemical activity. It was decided to open it manually. When they opened it, the smell was strange – a mixture of mold, metal and something barely perceptible. Inside were old toys, a stack of letters and a photo album. But underneath them was a sealed wooden box. It was opened and a muffled squeak was heard from inside. Inside was a tiny baby, wrapped in a thermal blanket. The boy was not even three months old. He was alive, but severely dehydrated. The doctors who were called to the scene immediately began resuscitation. Lucy sat next to him and watched, not taking her eyes off him. It later turned out that the baby’s mother had tried to flee the country, leaving him at the airport with a note: “I can’t take it anymore, I’m sorry…” CCTV cameras showed the woman leaving her bag and walking away. She was caught at the border with a different passport. Lucy became the heroine of the day, all the German newspapers wrote about her. The boy was named Lucas and temporarily ended up in an orphanage. Marco could not forget his face. A month later, he applied for guardianship. Lucy is no longer just a colleague, but part of their new family. The story quickly spread across social media. People donated money for Lukas’s treatment. His story touched millions. The woman who abandoned the child was awaiting trial. She said she was desperate. But the court found her guilty of attempted murder. Lukas recovered. He often laughed when he played with Lucy. Marco said it was a sign – that they were all meant to meet. People from different countries sent gifts. The story of Lucy and Lukas became a symbol of hope. The German border service held a ceremony in honor of the dog. Lucy received a medal. And Marco quietly said that day: “I was just keeping an eye on my dog.” But in fact, he saved a life. Since then, every time he passed that bench, he remembered that day. Lucy always stopped there for a moment. And no one could doubt it anymore – service dogs have hearts. And sometimes they feel things that even people do not notice.