Lot of 2 : Percy Jackson and the Olympians Series books 3 & 4 Rick Riordan

Percy Jackson and the Olympians #3 The Titan's Curse When Percy Jackson recieves an urgent distress call from his best friend Grover he immediately prepares for battle. He knows he'll need his powerful demigod allies, Annabeth and Thalia at his side; his trusty bronze sword, Riptide and...a ride from his mom. The demigods race to the rescue to find that Grover has made an iimportant discovery; two new powerful half-bloods whose parentage is unknown. But that's not all that awaits them. The Titan lord Kronos, has set up his most devious trap yet and the young heroes have just fallen prey. Hilarious and action-packed this third adventure in the series finds Percy faced with his most dangerous challenge so far; the chilling prophecy of the Titan's Curse.  Percy Jackson and the Olympians #4 The Battle of the Labyrinth In this fourth installment of the blockbuster series, time is running out as war between the Olympians and the evil Titan lord Kronos draws near. Even the safe haven of Camp Half-Blood grows more vulnerable by the minute as Kronos's army prepares to invade its once impenetrable borders. To stop the invasion, Percy and his demigod friends must set out on a quest through the Labyrinth - a sprawling underground world with stunning surprises at every turn.  ISBN:  9780545078337  9780545200493   Genres: Fantasy Young Adult Mythology Fiction Percy Jackson Middle Grade Adventure Greek Mythology Childrens