Yes, Josie and the Pussy Cats are related to Archie Comics. They are part of the Archie Comics universe and have interacted with other Archie characters in various storylines.
No. Josie's mom was a very brave woman in the story. She remained calm throughout all the events that happened, whether it was the sudden blackout or the mysterious figure outside the window. She was more of a reassuring presence rather than a scared one.
Yes. When Josie was missing for a while, her mom started to panic a bit. Her hands were shaking and she had a worried look on her face which could be considered signs of fear.
It was uncertain whether Josie's Stadium was a famous novel because of the lack of detailed information about the novel. However, many novels are considered masterpieces. They are often studied and discussed for a long time, and are widely distributed and read. If you want to determine whether a novel is a masterpiece, you should consult the relevant library or online resources or consult the opinions of literary critics.