The Happy Hollister children are off on another exciting Mystery This time it all starts with a letter written in a funny code from Grandmother Hollister, who lives in Canada.
Hollister\'s sailplane invention is pirated, they all go on to Iceland to solve another Mystery that turns out to be strangely linked to the first.
But when Mr.
Then Pam added, While Daddy\'s in Iceland, we can go to Canada and solve the Mystery So in a few days, off they go to Canada where they meet a new blind friend who helps in their detective work.
We\'ll have to wait until Daddy tests his sailplane, Pete said.
Hollister told them that he would be flying his new sailplane invention in a New York State competition in a few days and, if possible, in the big international sailplane meet in Iceland.
But Mr.
With love, Gram The children begged to go visit Gram and Gramp.
How would you like to visit me and meet a special friend? Also, I wish you could solve the Mystery of the Midnight trolls.
It is braille.
The letter said: Dear Children, Gram is writing to you in code.
The Happy Hollister children are off on another exciting Mystery This time it all starts with a letter written in a funny code from Grandmother Hollister, who lives in Canada
