Michigan Chillers Series by Johnathan Rand

No one would believe them. That's why Nick and Summer took the dinosaur egg back with them through the time-portal. But they forgot that the egg has parents and they're not stopping until they find it!

Something sinister lurks beneath the city of Saginaw, Michigan. Leah, with her friends Conner and Angela, don't have much time before these giant spiders put their evil plan into action.

A simple jaunt out in the woods to dig for worms unearths something more sinister. What have they disturbed long gone for centuries and a half a world away?

The Coast Guard cutter 'Mackinaw' is docked at the port of Cheboygan, the hometown of Emily, Brian and Gavin. But with it comes an old legend and it's haggard old sea captain... an old sailor who invites the unsuspecting to come aboard, never to release them from his Ghost Ship!