By Sean McMullen.
Novel concept, flawed execution. The concept is that certain Romans (as in, the Roman Empire) discovered a way to successfully freeze and revive human beings, effectively allowing time travel into the future. However, the prose is often confusing and incoherent, mixing up the names of characters and making hard to understand jumps from event to event and conclusion to conclusion. Neither are the characters particularly compelling, especially since most of them are insane and/or die.
My advice would be that this isn't worth reading.