If you are talking about the secret lab map. You must have all 9 piece's of the map in your inventory then go to the laboratory and they will vanish because you have used them to get there but you will always be able to use them. (A current price of a full set right now is at least 100,000 neopoints)
go to the map and click it.
it will take you on to the map
A thing that lets you know how to Complete the mysterious island on Neopets.
You need a map, and to get it you need all the pieces.
You must have the petpet map complete first. Here is the link though http://www.neopets.com/petpetlab.phtml
You have to buy all the pieces of the map first.
giraffe
There aren't really any flying saucers on Neopets, but you might be thinking of Kreludor or the Virtupets Space Station, which can be accessed through the Explore Map.
Buy what it wants and bring them to it.
On Neopets the only way to get a full map is to collect the pieces from just randomly picking them up of the floor, shops and auctions (you need alot of neopoints though) I suggest that if you find any, sell them I got 61,362 neopoints for one piece of a map! :)
You have to have the full lab map. VERY PRICY I might add.
you have to collect all 9 pieces of the secret laboratory map pieces