Tactics for Necropolis.

I must be a complete noob because I don't understand how you manage to "summon" hundreds of skeletons in the first couple of weeks:eek:? Or is my game somehow glitched?.. Here's a recent example: out of 50+ halflings, I only got 2(!) skeletons with advanced necromancy:mad: - and I don't even want to think about how many I lost in the process:smile35:! (I'm practicing against the computer on a standard random map, the kind people play online here).