dnd 5e – Hide an artifact

In my D&D 5e campaign my players have found an artifact, to be specific a Necronomicon (which is more or less a spellbook) and now they carried it around.

Most of the abilities of the book are already known to the players:

  1. The main purpose of the book is to be found (and read) – this is its
    primary goal, everything else is secondary.
  2. Because of that (point 1) its magic trace always can be detected – for now they keep it in a lead box within a bag of holding – even then people
    in a radius of approximately 50 feet can detect or react to the books
    aura.
  3. Once completely read it basically starts the event chain for Ragnarök
    • the destruction of the current era to move on to the next one
  4. It also contains all 7 great evils – they already “destroyed”
    Azmodan.
  5. In order to destroy it they would have to destroy the Far Realms, so
    basically a whole plane – not really an option yet for them since
    they are lvl 10.

Since the book bugs them more and more, they are trying to hide it now – the bag of holding combination is barely working for them. More and more monsters are chasing them for the book and they are getting pretty much super annoyed by it.

I was thinking of a logical way for how they actually can get rid of the book without “returning”, but I don’t want to “gift” it to them.

A few things I already ruled out:

  1. Just hiding it on another plane

  2. Dumping it in the sea/volcano/forest/whatever

  3. Giving to some strong NPC that knows about the book, since the book
    can corrupt even the strongest and kindest mind

Is there any “smart” way to actually get the book out of their way for at least a few sessions so that they stop going crazy about it? I want to be able to give them a “little hint” in order that they then figure it out themselves.

Main Reason for this, the problem to solve

The game sessions are getting more and more about discussions of how to get rid of the book instead of actually playing – which is very annoying in the long run for both sides of the DM screen.