hardy boys book bundle the spring cull is here and im letting go of this collection :) this listing is for five hardy boys books with copyright dates from 1966-1969. they are hard cover. books included are: 18) the twisted claw, 29) the secret of the lost tunnel, 45) the mystery of the spiral bridge, 46) the secret agent on flight 101, and 47) mystery of the whale tattoo. they are all in fantastic vintage condition :) msg me for a bundle discount! please read my shop policies before buying or if you have any questions :) tags:#book#books#mystery#detective#vintage mysteries novel ya young adult 1960 1960s 60s