Gregory Benford 
Eater 

When a distinguished astrophysicist is presented with evidence of a new artefact approaching the solar system, his initial reaction is that the figures must be wrong. But they are not. The mysterious object is not only real, it is heading towards us at an incredible velocity. Then the data indicates that the visitor is a black hole. A black hole that can change direction. A black hole that is sending us a message… I DESIRE CONVERSE Eater is a fast-paced thriller from an author who is both a great storyteller and a highly respected scientist. It is a combination that makes for classic SF.