As repayment for Hermione’s blood debt towards the Malfoy family, he should offer himself—offer to serve the Malfoy family for a year, or until Hermione is cleared of the charge. Accepting this would not be a loss of face for Lucius, and there is already precedent—the way Crabbe and Goyle serve Draco.
Given the Harry-Draco relationship and what Lucius thinks of it, and his belief in Harrymort, he would be insane to let Harrymort inside his household on Harrymort’s own suggestion. Keep your enemies close, yes, but outside your fort!
My stab at what Harry could do:
As repayment for Hermione’s blood debt towards the Malfoy family, he should offer himself—offer to serve the Malfoy family for a year, or until Hermione is cleared of the charge. Accepting this would not be a loss of face for Lucius, and there is already precedent—the way Crabbe and Goyle serve Draco.
Given the Harry-Draco relationship and what Lucius thinks of it, and his belief in Harrymort, he would be insane to let Harrymort inside his household on Harrymort’s own suggestion. Keep your enemies close, yes, but outside your fort!
This feels implausible, but, given that Lucius seems to think that Harry is Voldemort, it would be tempting.