Barrie writes that "when the first baby laughed for the first time, its laugh broke into a thousand pieces, ... and that was the beginning of fairies." Neverland's fairies can be killed whenever someone says they don't believe in fairies, suggesting that the race of fairies is finite and exhaustible. When dying from Hook's poison, Tinker Bell is saved when Peter and other children and adults across the Neverlands and Mainland call out "I do believe in fairies, I do, I do," so their deaths are not necessarily permanent. At the end of Barrie's novel Wendy asks Peter about Tinker Bell, whom he has forgotten and he answers, "I expect she is no more."