TY - BOOK AU - Osborne,Mary Pope AU - Murdocca,Sal TI - Dolphins at daybreak SN - 067988338X (pbk.) U1 - Fic 21 PY - 1997/// CY - New York PB - Random KW - Marine animals KW - Fiction KW - sears KW - Submarines KW - Riddles KW - Magic KW - Tree houses KW - Youth Fiction KW - Fantasy N1 - 3.1; 6-9; 1-5; 350; Lexile N2 - Their magic tree house takes Jack and Annie deep into the sea, where they meet up with dolphins, sharks, and octopi as they search for the answer to an ancient riddle ER -