Book 1

Delta Search

by William Shatner
Oct 11, 1997
English
Paperback (416 pages)

Book 2

In Alien Hands

by William Shatner
Aug 5, 1998
English
Paperback (432 pages)

Book 3

Step Into Chaos

by William Shatner
Dec 8, 1999
English
Paperback (400 pages)
Jan 6, 1999
English
Hardcover (242 pages)

Book 4

Beyond the Stars

by William Shatner
Jan 26, 2000
English
Hardcover (240 pages)
Mar 6, 2001
English
Paperback (272 pages)

Book 5

Shadow Planet

by William Shatner
Nov 5, 2002
English
Hardcover (336 pages)

Book 6

Quest for Tomorrow #6

by William Shatner
Jun 1, 2010
English
Hardcover (256 pages)