Sample of a basic SPIKE STITCH....it can be done in so many different combinations in a triangular formation going deeper in to 5 or 6 rows done on top of each other or staggered as l've done
Basic rows of SC then on the 4th row l've gone down the rows to make the spike.....
1 row for first 3 stitches then
down 2rows for the next st
down 3rows for the next st
and finally down 4rows for peak st
then reverse 3 rows 2 rows and 3 st as you would normally do the SC
Hope that helps but like l said there are lots of instructions and video's on Google for you to look at all the variations
Still ache like mad but the front door is calling fingers crossed we have no disasters and its finished by tonight!
Hugs all x