I've got two books out as of last night now.
L.E. Modesitt Jr.
The amazon.com blurb:
In the far future, an indestructible and massive canal more than 2,000 miles long spans the mid-continent of Earth. Nothing can mar it, move it, or affect it in any fashion. At its western end, where it meets the sea, is an equally indestructible structure comprising three levels of seemingly empty chambers.I've enjoyed L.E. Modesitt's books before, so this was an easy one to pick when I saw it on the shelf. Just the description alone is intriguing.
Scientists from three different civilizations, separated in time by hundreds of thousands of years, are investigating the canal. In the most distant of these civilizations, religious rebellion is brewing. A plot is hatched to overthrow the world government of the Vanir, using a weapon that can destroy anything-except the canal. If used at full power it might literally unravel the universe and destroy all life forever. The lives and fates of all three civilizations become intertwined as the forces behind the canal react to the threat, and all three teams of scientists find their lives changed beyond belief.
The second book:
The amazon.com product description:
Worlds collide in Gordath Wood.This was just one of those "the cover looks interesting" books.
Something strange is happening in Gordath Wood, the old woods surrounding a training stable called Hunter’s Chase. The police think Lynn Romano and Kate Mossland have been murdered, but what actually occurred is much stranger. They’ve gone through a hole between worlds, into a medieval society at war. In a world that doesn’t ordinarily have use for women, the danger is great—good thing Lynn and Kate aren’t your ordinary women.