- Title: The Guide Dog Mystery
- Author: Gertrude Chandler Warner
- Main Characters: Henry 14 , Jessie 12 , Violet 10, Benny 6
- Story takes place at a guide dog school
- Jason works with Ginger to do one more exam with Ginger the dog before becoming a guide dog
- The children are invited to spend a week at the guide dog school to help out
- Mrs Carter, the owner of the dog school,
- Children take phone calls and organize files
- A man tells the children he wants to buy Ginger for his shows
- Annie is 17 year old and is a blind girl who is looking for a guide dog
- Children watch Annie training with Ginger
- Children see a light flickering at night in the guide dog school
- Jason can't find his key to the kennel
- Benny finds notes in Jason's trash can that say "meet me at 11 o'clok tonight at Joe's restaurant...it's important"
- Charlotte Davis is the former owner of Ginger who sent the note to Jason
- Charlotte Davis never showed up to the restaurant to meet Jason
- Children think that Charlotte Davis must have got the kennel key from Jason's room when Jason was at the restaurant waiting for her
- Someone was following them when they went shopping with the guide dog
- Annie can hear other footsteps following her and smells special shaving scent
- Picnic in the park with the man watching them from the bushes
- Ginger sleeps in Annie's room because scared that dog will be taken
- Annie says Ginger was not in her room. Somebody whispered "Ginger" and smelled like the shaving scent earlier
- Old dog collar from before has a hidden diamond necklace
- Benny recognized the driver of Mrs Carter as being the mysterious man
- Ginger comes into the room with the man
- The man says he wanted the diamond necklace he stole from Mrs Davis
- Police came and arrested the thief whose name is Glenn