The Sirens Sang of Murder: Number 3 in Series (Hilary Tamar)

Young barrsiter Michael Cantrip has skipped of to  the Channel Islands to take on a tax-law case  that's worth a fortune -- if Cantrip's tax-planning  cronies can locate the missing heir. But Cantrip  has waded in way over his head. Strange things are  happening on these mysterious, isolated isles.  Something is going bump in the night -- and bumping  off members of the legal team, one by one. Soon  Cantrip is telexing the gang at the home office for  help. And it's up to amateur investigator Hilaray  Tamar (Oxford don turned supersleuth) to get  Cantrip back to safety of his chambers -- alive!