Book two of Pohl's Heechee Saga begins where the last left off (well a little time has passed for poor Robinette, but he's doing well). There are two main storylines, much like the first book. New characters are introduced and the world Pohl created is explored more fully. It is a great sequel and I recommend it for anybody who enjoyed Gateway. It is a must if you wish to see what happened next. Alas, this book is much like the first. It leaves you with still more questions. But, fear not, for the third and fourth books of the series are also available!