Vadermon looked at Koushiro and said, "What do you want?"
Since Koushiro COULDN'T TAK, {Koushiro} showed by action. Determinedly {Koushiro} walked into the room and grabbed the bottle in front of the Digimon customer that contained {Koushiro}'s inquisitive heart. Holding it gently to {Koushiro}'s chest, {Koushiro} apologized to it inside of {Koushiro}'s mind, “I’m sorry for throwing you away, my inquisitive heart…” and opened the lid. The inquisitive heart returned to where it belonged, inside Koushiro. At the same time, the power of speech returned to {Koushiro}. “It was wrong of me to throw away my inquisitive heart. Not wanting to know isn’t who I am. I want to know everything. That’s me.” “Babuu!” From its perch on Koushiro’s shoulders, Babumon blew bubbles of agreement. “Hey, what’s going on?” the Digimon customer asked Vadermon. “Can’t you tell? {They're} stealing.” Vadermon took out what looked like a toy gun with a parabolic antenna attached in the front. It aimed the muzzle at Koushiro. “Give it back.” “No,” Koushiro said flatly. “Then I’ll kill you and take it from your dead remains.”
Digimon Adventure Novel; “The Inquisitive Heart” Translation from Digital Scratch (Link in the comments)