One of the themes is that the author want his readers to know that there is more to life then we can see, or that a building/ strengthening a friendship is worth more than any treasure. Another one is like don't judge a book by its cover in this case the author is trying to point out when gandalf said that biblo is more than what meets the eye and thorin and co. underestimated him. Until he found the ring. Sorry if this is spoiling the book to anyone. Hope this helps! Have a great day!
Make corrections in punctuation and capitalization in the sentences below.

(1) Look at your fingerprints and you will see small ridges in the skin. The pattern of those ridges is different from anyone else’s fingerprints. Fingerprints never change. If the skin were burned off your fingertips time and time again, your fingerprints would be the same as they were once the skin heals.
(2) There are many different characteristics on each fingertip. Each finger has about 100 different marks. No two fingers on the same hand are alike. No two fingerprints have yet been found to be exactly alike.
(3) Everything that is touched by a person carries his fingerprints. Criminals are captured by the police because their fingerprints are found on objects associated with the crime.
(4) The Chinese were the first people to use fingerprinting thousands of years ago. Today, all countries use fingerprints to identify people. The FBI in Washington has a collection of almost 160 million fingerprints.

Answer:
They had to hide the frank family and keep it a secret from the Nazis so it was probably pretty scary for them.
Explanation: