Question Ran into an interesting problem in Summing

I tried to add a new message to the summoning list...

static const char *mag_summon_msgs[] =
Making the total 13 messages but when I did, it would crash the system.

Is there somewhere I haven't found that limits the messages to 12?

Thanks for any help.

Remember that the 13th message is used like this: mag_summon_msgs[12]