Hello! I have twins. At 18 weeks I had an ultrasound screening and eve…

Hello! I have twins. At 18 weeks I had an ultrasound screening and everything was fine with the babies.. and today I had an ultrasound at 30 weeks. One fetus has stopped developing (a missed miscarriage); it turns out I've apparently been carrying it for two months.. They said the other one seems normal.. Is it dangerous to remove the dead one, can I carry on until term and give birth to the second?.. Has anyone experienced this? I'm terribly, terribly scared..