I am still working on the yellow Baby Cashmerino blanket; only realized a week ago that the baby is more than half-way to birth, but the blanket is not! I wrestled (and must be still wrestling) with a problem of what to do with a mistake I discovered. I was four or five rows beyond a place in the pattern where I transposed the 5 purl and 3 knit stitches. So the little bump that should have been, was about half, where the purls changed to knits. How I missed it...well who knows?
However, in Book 2: The Purl Stitch by Sally Melville, photos near the back show in wonderfully clear detail what one can do when you discover your mistake. "If a stitch was purled when it should have been knit, discovered many rows later," is the headline over photographs of a mistake being corrected, with directions below. Additionally, the same tutorial is on the opposite page for a stitch knit when it should have been purled. So the information was available for me to make a correction in this little blanket.
Of course, I could also unknit it all, back to the mistake, and begin again from there; this is an unpleasant prospect. I could run a piece of contrasting yarn through the row below the mistake, and then just unravel it; something I have not done before. The reasons for my hesitation about this correction are as follows: the yarn is particularly delicate and I don't want to harm it with overworking it. The yarn is also very elastic! The stitches want to return to the ball from the needles so care is required.
After time and thought, I attempted a correction via the ladder method in the above book. Several rows were involved, several stitches. I am a novice when it comes to this sort of thing, and was apprehensive about making a bigger mess than what I already had. When I had done what I thought was necessary, I found it was still not just right. In the picture above, the mistake is in a shadowy bump in the upper right quadrant. So I put it all away and have taken some time to think, again.