I FAILED TO GIVE BIRTH THE FEMALE LEAD

After transmigrating inside the novel her disease mother wrote, she became the female leads mother character. She was supposed to give birth to the female lead but everything went mess up. Because of her being immersed in learning magic,she forgot to leave and go outside her house for 20 years after transmigration.
She only later realize what had she done.
"what will happen to the novel if the female lead is missing!?"-Kamaria said depressingly.