The Isis Adventure

I live in the Netherlands (the country of only one pyramid and two hidden free ISIS).
If I buy an ISIS in London (where I happen to be this weekend), will I be abe to use its key to open a pyramid outside the UK? Or is any ISIS key usable for any pyramid in the world?
The BeNeLux forum master suggested an ISIS bought in the UK might only be 'usable' in the UK, but he was not sure.
Of course I know I can order an ISIS from a webshop, but since I happen to be in Londen this weekend and I heard there is a shop selling them off the shelf (Hamleys), I think that is the fastest way to get one, and just a bit cheaper too.

All Isis keys will fit all pyramids (worldwide).

So if you buy an Isis in the UK and go on holiday to the US, Europe or visa-versa you can unlock a pyramid there (assuming you solve the pyramid password first).

Ade

Thanks for that quick (and satisfying) answer, I copied it to the BeNeLux forum.
I just saw on the webpage of Hamleys that the Isis are out of stock.
Is there a list of (London) shops selling Isis?

The big department store of Harrods sells them if I remember correct.

LouIsis wrote:Thanks for that quick (and satisfying) answer, I copied it to the BeNeLux forum.
I just saw on the webpage of Hamleys that the Isis are out of stock.
Is there a list of (London) shops selling Isis?

Hamleys do have stock on the shelves. Their web site stock is different to the shop stock.

The Isis can be found on the 1st floor in the area of classic games such as chess sets.

Ade

Indeed Hamley's and Harrods both sell the Isis and have a (demo?) pyramid in their shops.
Harrods sells the O2 Tutankhamun version and a Harrods version as well (at 'special' prices).