What happens spells fail? Do they die off?

 According to Spellcaster Maxim, the effects of energy from spells don't just die off or disappear into thin air when they have completed their assignment. They look for the next target, which is usually the person closest to the target at that particular time — maybe their children, spouse and close family members.

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The transfer of magic energy and forces that propel spells is the reason why the effects of powerful spells can linger for many years — in some cases; curses can haunt a family for generations until a professional spell caster like Spellcaster Maxim intervenes. These, among several other reasons, is why professional spell casters advise their client against using spells to get revenge.

From experience, Spellcaster Maxim notes that there are people who will damn the consequences and cast powerful love spells using black magic for revenge and retribution. For such people, he would have to consult extensively with higher authorities to determine whether to cast the spell or not. If he gets the go-ahead, he will proceed to cast protection spells to ward off negative forces that may be seeking to interrupt the process or hinder the spell from achieving its purpose.