Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
Immortal Coil is a Star Trek: The Next Generation novel written by Jeffrey Lang, published by Pocket Books in February 2002. The novel focuses on the character Data investigating an incident at Starfleet. The novel takes place in the 24th century in the Star Trek Universe.
Plot
When a newly developed android developed by Starfleet is destroyed, Lieutenant Commander Data helps investigate the incident and who is responsible. During the course of his search he discovers he is not as unique as he once believed.