Claudia and the phantom phone calls /
Ann M. Martin.
- New York : Scholastic, c1986.
- 153 p ; 20 cm.
- Baby-sitters Club ; #2 .
- Martin, Ann M., 1955- Baby-sitters Club ; #2. .
"An Apple paperback.".
Claudia decides to investigate when she and the other members of the Baby-sitters Club receive mysterious phone calls while out on assignments.