[Lexin]

I'm running my first game of D&D5e on Saturday. This is after many years running second edition, so it's a complete change of direction for me and my players. Think of me!

One question - HL says that 1st level spells cost 2 spell points to cast, 2nd level cost 3 and 3rd level cost 5.

This seems perfectly reasonable as my 5th level characters (I thought I'd start them all at a level where they have some good stuff to play with) have 27 points each.

But where is this in the books? I know they will ask. At least, one of them will.

I have the DMG and the PHB, btw, not just the download from Wizards of the Coast.