A smartphone

Gwen arrived at a table, she spotted a smartphone on it.

"Hmmm, maybe this has a clue on it." Gwen thought to herself, she then turned on the phone. Gwen looked through all of the apps, looking for clues. Then all of a sudden, a spiral appeared on the phone, ensnaring Gwen almost immediately.

"Wow, I guess she is quite susceptible to hypnosis." John thought to himself. He then coded a message into the phone.

"There is a pair of headphones on the table, put them on." The phone read, Gwen obeyed and put them on. John then spoke to her directly through the earbuds.

"Come to me, daughter." John commanded.

"Yes, I will come to you... Daddy..." Gwen said. John was shocked at how fast Gwen went under