While fishing and exploring a deserted South Seas island, the Alden children discover clues that they aren't alone. Aligned to Common Core Standards and correlated to state standards.…

The Alden children are excited to see their friend, Mike, while visiting their aunt, but when Mike is blamed for burning his house down, the siblings want to help Mike clear his name. Aligned

The Alden children are trapped in their cabin by a snowstorm, but while they wait for the storm to pass, they discover the cabin is full of secrets. Aligned to Common Core Standards and…

The Alden children can't wait to spend their summer on their own private island, but they soon discover the island is full of surprises. Aligned to Common Core Standards and correlated to…

When the Alden children see odd lights coming from a closed amusement park and they receive a phone call warning them to stay away, they are determined to figure out what is going on at the…

Orphaned siblings, Henry, Jessie, Violet, and Benny Alden, make a home in a boxcar and will do anything they can to stay together. Aligned to Common Core Standards and correlated to state…

The Alden Children are fixing up an old castle that will be turned into a museum, but they have to solve the mystery hidden within the castle's walls. Aligned to Common Core Standards and…

The Alden children stay in a haunted cabin, but as more spooky things happen, they begin to wonder if there really are ghosts, or if someone is trying to scare them away. Aligned to Common…

The Alden children love helping out at a local pizza parlor, but a blackout and other problems make them wonder if someone is trying to shut down the business. Aligned to Common Core…

The Alden children discover clues that could help them figure out why a man vanished from a run-down yellow house on Surprise Island. Aligned to Common Core Standards and correlated to state…

The Alden children are helping their new neighbors build a tree house when they discover an attic window that not even their neighbors knew about. Aligned to Common Core Standards and…