Super cipher expert Crypto Cat® discovered at 9 pm last night that one of her secret codes was stolen from the crypto lab at home. She knows it could have been anyone, however Crypto Cat remembers that three of her closest friends visited the house last night:

Friend 1: Slate
Friend 2: Joules
Friend 3: D. Dog

She tells us the visits occurred at 6:45 pm, 7:20 pm, and 8:25 pm. During each visit, Crypto Cat and her friend removed the code from the safe, reviewed the coding procedures, and locked it back in the safe.

At 9 pm, Crypto Cat went to the safe to use the code to create a message - only to find a blank sheet of paper!! The true code had been stolen and replaced with a fake code written in disappearing ink. In her distress of losing the code, Crypto Cat can't remember who visited at what time, but she does remember these conversations.

"Say, I 'm really thirsty. Could you get me some water?"

"Ouch, I just cut my finger on that paper. Do you have a band aid?"

"Man, I'm soaked to the fur from the downpour. Can I have a towel?"

Unfortunately, Crypto Cat can't remember who she had each conversation with, however, she does remember these three things:

1. Friend 1 visited before the girl who said "Say, I'm really thirsty. Could you get me some water?"

2. The boy who said "Man, I'm soaked to the fur from the downpour. Can I have a towel?" visited after the girl.

3. Crypto Cat has used the same disappearing ink for codes before and knows it disappears exactly 2 hours after it is written.

Using the clues, which friend stole the secret code?

Solution