Gli ultrasuoni (Spada)

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Gli ultrasuoni
1st publication: Mandrake #18/1967
# of pages: 24 pgs
Writer: n/a
Artist: n/a
Producer: Fratelli Spada

"Gli ultrasuoni" is an Italian made Mandrake story from 1967.

Plot summary

Dr. Fright being found by Ramon, a rubber collector, in the Amazon forests. At professor Langley's clinic dr. Fright told Mandrake a strange story. He and professor Thurner explored an area with a red colored forest. They came across a cave, and when they found a diamond the size of a pigeon egg, they decided to explore the cave. Something attacked them and Jon disappeared.

Later Jane Thurner asked Mandrake if he could be part of an expedition to search for her vanished father.


Recurring characters

One-time characters

  • Ramon, a rubber gathrer and guide
  • Dr. Fright, member of an expedition
  • Professor Thurner, member of an expedition
  • Professor Langley, at a clinic
  • Jane Thurner, daughter of professor Thurner
  • Tirkas, a cave man


  • New York City
  • Amazon rainforest


This story has been published in the following publications:

Mini france.gif France

Mini italy.gif Italy