The sstory revolves around a mysterious series of murder attempts on Professor Kober, a botany teacher, and the investigation led by George Valentine. As the story unfolds, various characters reveal their motives and connections to the professor, leading to a thrilling conclusion where the true murderer is revealed.

Takeaways

The story begins with a mysterious threat to Professor Kober.

Louise DeRane believes her professor is in danger.

The investigation reveals multiple suspects with motives.

The greenhouse holds secrets that could lead to murder.

Accidents surrounding the professor are not mere coincidences.

The tension escalates as more attempts on Kober's life occur.

Valentine uncovers a deeper conspiracy involving jealousy and ambition.

The true murderer is revealed through clever deduction.

The story highlights the intersection of academia and personal relationships.

The conclusion leaves room for future adventures.

mystery, murder, investigation, botany, professor, danger, greenhouse, suspects, motives, adventure