Out of Time, by Peter Lerangis, for Timeslip Tuesday

I just this minute finished Out of Time (Throwback #3) by Peter Lerangis, this week's Timeslip Tuesday book...I am not very good at keeping my own personal time well managed, and am always scrambling to do what needs doing.  In this case, the scrambling to finish the book (155 pages to go an hour ago) was actually very easy, since I was nicely absorbed.  It was certainly nothing compared to the desperate scramblings through time of the two main characters!

This is the third book of a series about a kid from New York, Corey, who finds out he's a time traveler, like his grandfather (there are more time travelers around than one would think...), as told in Throwback. Corey turns out to be a one of a kind time traveler, though--he can alter the past.  And so he does.  In the second book of the series (The Chaos Loop), he traveled to Germany right at the end of WW II to save his great uncle...but in doing so, he changed the past by keeping his grandparents from meeting, and so he was never born. The Corey who time travelled makes it back to his own present day in New York....but changed into a wolf.

His best friend, Leila (another time-traveler), is the only one who remembers the Corey who no longer belongs in the current time line, and she's determined to help him figure out how to become himself again.  They find help from a secret society of time travelers, who are able to take the gene that gives Corey his unique ability and transfer it to her.  Now the two of them, wolf and girl, head back to the cold winter at the end of Nazi Germany, hoping to give Corey's grandparents their chance to meet, while still keeping his great-uncle alive....

It is tremendously tense!  Wolf Corey's health is failing (a side effect of his situation), and Leila isn't certain she can change the past...but it all works out in the end, mostly thanks to Leila's bravery.

I didn't register it at the time of my reading, but the secret society of time travelers, which includes "trackers" who can tell when the past has been changed, shouldn't really want to be able to create other's with Corey's gift--they are creating for themselves the problem of altered realities that they are contending with (unless Corey and Leila are responsible for them all)....but no matter.  The story at hand is well worth reading regardless!

Time travel-wise, not only to we get to go back to Nazi Germany, but we also get a solo trip by Leila to witness the building of Central Park, and learn a bit of its history, which was very interesting.  

short answer--a solid series, that I can easily imagine middle grade kids loving!