Magic Tree House #31: Summer of the Sea Serpent - Used Book

Jack and Annie are off on another mythical mission at the request of Merlin the magician. Luckily, they have a young sorcerer, Teddy, to help them. From underwater caves to a Spider Queen, from mystical selkies to a magical sword, this is a Magic Tree House adventure kids won't want to miss Used book, condition varies No refunds! Children’s book - no sticker