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- Available in Paperback at this price.
- written by Rick Riordan
- The Lightning Thief
- The Sea of Monsters
- The Titan's Curse
- The Battle of the Labyrinth
- The Last Olympian
Staff PickDeals so good we bought one ourselves
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- Pictured is the Skyhorse Publishing Grades 1-4 STEM Starters & Activities for Kids Book Set for $18 ($10 less than purchasing them at Amazon).