The Book of haricanto is a book of rituals written by an ancient sorcerer from the Wushanko Isles named Haricanto, and is found during the Ghosts Ahoy quest. It is one of three items that players must present to the Old Crone. The Old crone uses the book, along with the translation manual and the mystical robes to make the enchanted ghostspeak amulet. The player then uses the amulet to force Necrovarus to let the ghosts of Port Phasmatys pass on.
Players can find it on Dragontooth Island by starting one square west of the statue of Saradomin near the north-western peninsula and following the instructions on the treasure map. They must then dig with a spade to find the book.
The book's location on Dragontooth Island
The book may be kept after the quest if a duplicate is made by using the drop trick. Previously players could not store it in the bookshelf, but due to an update it is possible to place it there but not to retrieve it.